A very tidy woman who resembles Trudy turns Monk's head while he's investigating a triple homicide. The only problem is, she's the prime suspect.

Renowned philanthropist Henry Rutherford is killed when a minor earthquake rocks the city and sends a display case falling on top of him. But when Monk examines the scene, he finds clues that suggest foul play.

When a ruthless CEO and his wife are lured to an industrial park and are shot dead in their car, Monk connects their murders to a star baseball player's quest for the single season home run record.

When a sarcastic and unpopular ringmaster is murdered by an acrobat wearing a face mask and a Ninja-like costume, Stottlemeyer suspects an animal trainer who not only has a motive but also owns the murder weapon. Monk, however, suspects the ringmaster's ex-wife, a trapeze artist billed as The Queen of the Sky who is also a sharpshooter. Meanwhile, the Monk alienates Sharona by telling her that her fear of elephants is irrational and advising her to suck it up.

Monk suspects that the man responsible for the mail bombing murder of rich and beautiful Amanda Babbage is the victim's brother, Brian – who has been in a coma for four months after attempting to lure Stottlemeyer and Disher into a car chase and crashing into two cars. Since the package was postmarked three days before the bombing, Stottlemeyer is naturally skeptical, but he prefers siding with Monk to tagging along behind Agent Grooms of the Bureau of Alcohol, Tobacco, and Firearms, who suspects the victim's other brother, Ricky.

Faced with a string of nine brutal murders, all with different MOs and no apparent similarities among the victims, Captain Stottlemeyer calls in Monk to help him investigate. Suspicion falls at first on Henry Smalls, an insurance agent whose calendars appear in three of the victims' photographs. But as Monk, accompanied by Sharona and her new boyfriend, Deputy Mayor Kenny Shale, waits in the dark for Smalls to return home, he helplessly witnesses a fatal stabbing in which the suspect becomes the victim. Rushing after the murderer, who is wearing a ski mask, Monk tries futilely to subdue him, but all he's able to discover is that the murderer bites his fingernails. As the number of victims rises to eleven, the diversity of the victims, combined with the fact that they all live in Marin County, suddenly causes both Monk and Stottlemeyer to realize that they're all members of a jury. The ensuing investigation leads them to a six-year-old personal injury case, won by the plaintiff, who is

When Monk's paperboy is murdered on his doorstep by a guy looking to steal his newspapers, Monk turns to the pages of the newspaper for clues to solve the baffling crime.

After visiting the set of the hit TV series Crime Lab S.F. during a celebration of its one hundredth episode, Monk suspects the show's star, Brad Terry, of murdering his ex-wife so he won't have to share his huge new paychecks with her. But the actor's alibi seems solid--he was with photographers when the victim's screams were heard. To complicate matters, a fan confesses to the crime and Terry passes a lie detector test. After Terry invites the captain, Disher, and Sharona--but not Monk--to a party, Monk realizes that Terry reminds him of a popular boy who treated him the same way in sixth grade and begins to doubt his own instincts. But when Stottlemeyer invites Monk to hear Marci's confession, Monk's doubts shift to Marci's story. When she tells him that Terry's ex-wife was once an actress who made a single B movie, Monk has the clue he needs to solve the crime.

On her way to film a documentary (apparently about a union dispute), Captain Stottlemeyer's wife, Karen, is badly injured when her car is struck by a tow truck whose nonunion driver has been killed by a sniper. Distraught and furious, the captain blames a sleazy union official and his thug, a theory that seems to be confirmed when a second tow truck driver is murdered. But Lieutenant Disher, in charge of the crime scene investigation, discovers an odd detail that doesn't fit well with this scenario – both the assailant and the murdered truck driver were barefoot. Empathizing with the captain's anguish, Monk offers to do whatever he can to help and of course ends up investigating the case. A small dog that follows Sharona from the crime scene leads her to the home of a handsome man who seems attracted to her, but Monk is more interested in the next-door neighbor's off-kilter sundial. Meanwhile, the captain, fearing that his wife will die, becomes increasingly violent, taking out his anger...

In yet another case of murder in a room locked from the inside, a music producer is found dead with bullets in his back, head. and chest, clearly neither an accident nor a suicide. But this time there's a further twist: the dead man's pet chimpanzee, Darwin, is caught with the murder weapon in his hand. Not wanting to make a monkey of himself by falsely accusing a chimpanzee of murder, Stottlemeyer takes the chimp into the interrogation room, tempting the animal to fire what he thinks is an empty gun. Meanwhile, Disher realizes that he's inadvertently given the captain a loaded gun and panic ensues. When the gun goes off, endangering not only Stottlemeyer but Disher, Monk, and Sharona as well, Stottlemeyer is persuaded that the chimp is guilty and is ready to allow animal control to put him to sleep. Sharona, however, is convinced that Darwin is innocent. In desperation, Sharona resorts to breaking and entering to rescue Darwin, persuading the most unlikely person imaginable to take hi

Three deaths during a city-wide blackout result in a joint investigation by Stottlemeyer, Monk, Sharona, and Disher, with the unprecedented cooperation of the FBI and the help of power company spokeswoman Michelle Rivas, an attractive brunette who is inexplicably attracted to Monk. While Sharona and Dr. Kroger pressure Monk to call Michelle, Disher follows up on Monk's suggestion that the power outage is connected to a '90s radical named Winston Brenner. Everything fits--the handwriting in the note, the phrasing, even a pair of photographs. Everything except one small detail at the end of the report--Brenner died in 1995. When the FBI acknowledges the possibility that Brenner may have faked his own death to avoid a trial, Captain Stottlemeyer presents a tree-hugging former friend of Brenner's with the evidence that Brenner is still alive and reminds him that this particular power outage is also a homicide. When the tree-hugger is murdered, it becomes clear that the killer is indeed Bre

Karen Stottlemeyer has decided to film a ""cinema verite"" documentary about her husband's work, but her timing couldn't be worse. The police commissioner shouts at the captain (on camera) for focusing on a routine arson fire in a wig factory and relying on Monk to solve a more newsworthy case involving a female victim whose body was cut up with a chainsaw. Monk is in even worse trouble. After presenting some useful leads involving the chainsaw victim's age and nationality, he accidentally erases several years' worth of crucial computer files, and the enraged commissioner revokes Monk's private practice license despite Stottlemeyer's protests that doing so will destroy him. With Sharona forced to return to her old job as a nurse, the devastated Monk sits in the hospital hallway all day waiting for her until, at her exasperrated insistence, he finds a job with a magazine as a fact checker. Meanwhile, having identified the victim based on Monk's information, the captain and Disher zero i

It's Sharona's turn to be terrified. After several frightening and mysterious encounters with a blood-soaked man that no one else can see, she begins to doubt her own sanity, and Stottlemeyer advises Monk to give her time off to restore her nerves. Monk is left with an irritating substitute nurse whose philosophy is the opposite of Sharona's: everything from Monk's requests for wipes to the obsessively systematic organization of his refrigerator has to go. Wanting Sharona back again, Monk goes to the garage where Sharona first saw the blood-soaked man and finds a clue--the silver tip from the toe of a cowboy boot. Meanwhile Sharona, who is attending a night class in creative writing, apparently forgets to turn in an assignment and seems to be misplacing objects. But when her writing instructor's husband dies of a heart attack after eating tomato soup, Sharona recognizes the plot of her missing story and realizes that she's not crazy. All she and Monk have to do now is tie together the...

When Edna Coruthers, a model employee at a giant chain store called Mega-Mart, is killed by a falling television set, Monk is called in to investigate by the store's security chief--who turns out to be his disgraced ex-partner, Joe Christie. Neither Monk nor Stottlemeyer wants to work with Christie, whom they hold responsible for some missing cocaine and the death of two police officers, and both of them disregard the evidence that Edna might have been murdered--a broken shoe heel (suggesting that the victim ran from someone or something), her dust allergy (which normally kept her from entering the loading dock where the death occurred), and the three letters (in different handwriting but with similar stamps) complaining about the victim. Twenty-seven days later, realizing that the stamps were all from the same roll and therefore from the same person, Monk reluctantly agrees to help Christie discover a suspect and a motive by working undercover as a store clerk. But he still doesn't tr

Captain Stottlemeyer and Lieutenant Disher are making a routine arrest when a mysterious man in a car drives up and shoots at them, wounding Stottlemeyer. When Monk and Disher try to apprehend their prime suspect, Monk’s obsessive-compulsive disorder allows the suspect to escape. Consumed with guilt, Monk goes to Dr. Kroger who gives him a drug to alleviate his obsessive-compulsiveness but impairs his sleuthing ability.

With Sharona in New Jersey remarried to her ex-husband, Monk has been without an assistant for three months and it's time to find a new one--if only he could find a suitable applicant. When Natalie Teeger, a thirty-something widow with an eleven-year-old daughter, arrives at his house, he thinks she's applying for the job, but she's really been sent by Captain Stottlemeyer to get Monk's help--two men have broken into her apartment in the last few days and she had to kill the second one with scissors in self-defense. Examining Natalie's apartment, Monk finds a single clue, an unused fish net caught between the sofa cushions, suggesting that the intruders were trying to steal Mr. Henry, Julie's pet fish. But why would anyone want to steal a ninety-nine-cent red herring, er, crimson marblefish? A second clue surfaces when Lieutenant Disher finds a note in the dead perp's pocket reading ""2:30 Sea of Tranquility"" and Natalie identifies the Sea of Tranquility as an exhibit at the science mus

With her daughter's school about to be closed as a cost-cutting measure, Natalie becomes a candidate in the upcoming school board election despite Monk's fears that she'll desert him if she wins. Natalie's frustrations with a jammed photocopier and other defective equipment bought at a police auction are dwarfed by fear for her life when a sniper fires into her campaign headquarters, further damaging the equipment and killing a security guard. The only clues to the identity of the sniper are an oddly folded note demanding that ""Natalie Teege"" withdraw from the election and a bullet from a semiautomatic rifle made in Russia. Suspicion falls on Natalie's opponent in the election, Harold Krenshaw, whom Monk knows as a fellow patient of Dr. Kroger's. Although Monk thinks that Krenshaw is lying about his friendship with Dr. Kroger and Krenshaw admits to being an excellent shot, Monk is sure that Krenshaw is innocent because he wouldn't misspell Natalie's name. When Krenshaw passes a polygra

After twenty-two-month-old Tommy Graser finds a severed finger and gives it to a policeman, Monk walks through the park with Tommy trying to retrace the child's steps. He finds no body or other incriminating evidence, but he does discover a surprising affection for the placid and intelligent toddler, who constantly repeats Monk's name and quietly submits to having his hands wiped when he touches ""nature."" A lab technician identifies the finger as that of a twenty-five-year-old man, and Monk deduces from a callus that the young man played the violin. After visiting the home of Daniel Carlyle, a musician who fits this description, Monk concludes that Daniel's mother and her other son, Jason, killed Daniel and that Jason is masquerading as his brother. Meanwhile, little Tommy is temporarily removed from the custody of his foster parents, and Monk surprises everyone, including himself, by volunteering to care for him for two weeks until his new adoptive parents can take him. With Tommy in

Monk appears to have met his match when a fellow detective shows up at a crime scene knowing all the answers.

Is Monk hallucinating or is he really seeing Trudy?

Suffering from amnesia, Monk wakes up believing he is the husband of an eccentric resident of a small town.

Low on cash because they haven't had a homicide to investigate in three weeks, Monk and Natalie search for the stolen Alexander Diamond, hoping to win the million-dollar reward. Unfortunately, they have competition in the form of a retired Scotland Yard investigator, a bounty hunter, and a gadget-loving private detective, all of whom want the reward money for themselves. Monk quickly figures out that the heist was an inside job and that one of the robbers was under five feet tall, short enough to hide inside a roll-top desk. He also discovers a clue linking a perpetrator to a transcendental meditation retreat. With their competitors close behind them, Monk and Natalie head for the retreat, where they find the thief, who is unfortunately dead. Meanwhile, Disher is having to interrogate a strange young woman who keeps turning herself in for such ""crimes"" as stealing pens or murdering a hamster. Monk tells Natalie that he's solved the case and they race to the police station with the other detectives following. The only thing left is to find the diamond before their competitors do.

When Captain Stottlemeyer suspects that a suicide is really a murder, Monk confirms his suspicions by discovering that the victim, Joanne Raphelson, was too short to have used the stool she supposedly stood on to hang herself. But the next clue, the remains of an olive, a cherry, and a cocktail onion on a stirring stick, leads Monk to suspect that the murder was committed by an astronaut, Steve Wagner. A little research reveals a motive--Joanne was about to publish a book revealing that Wagner had abused her five years earlier. Now all Monk has to do is to prove that Wagner could commit the murder when he was in outer space.

While working on a double murder, Monk finds that imitation is the sincerest form of flattery when he finds that an obsessive method actor has been cast to play...Adrian Monk in a new movie.

Monk finds himself adrift in an ocean of filth when a garbage strike brings San Francisco to a halt...and Adrian to near-paralysis.

When Monk goes to his firehouse to get his smoke detectors inspected, the crew is quickly called away to a fatal house fire in which a young woman is killed. Minutes later, a mysterious intruder walks into the firehouse, lethally bludgeons a veteran fireman, blinds Monk with cleaning acid, then escapes. Despite Monk losing his eyesight, Stottlemeyer coaxes him to continue investigating, and Monk soon finds that the fire and his attack are connected.

When Dr. Kroger retires after his cleaning lady is killed, it's up to Monk to solve the case and get Dr. Kroger back to work.

A fun-loving everyman named Hal bumps into Monk, and the two become fast friends. For the first time in his life, Monk appears to have a buddy. But is Hal up to something?

When Natalie suspects foul play in the deaths of her parents' wealthy neighbors, Monk goes undercover as a butler to investigate.

When the mysterious “Six Way Killer” strikes in San Francisco, Monk matches his detective skills against the flashy forensic technology of a federal agent as they both pursue the murderer.

Monk must confront his prejudice against nudists when he's called to investigate a murder on a nude beach.

Monk digs up trouble after following a treasure map brought to him by Dr. Kroger's son Troy.

Monk has trouble coping with new information that he finds out about his arch-rival, Harold Krenshaw.

When a man he sent to prison years ago is cleared based on new evidence, a guilty Monk tries to help him adjust to life on the outside.

Mr. Monk takes a walk when he can't sleep, but ends up running into a murder.

Monk becomes a social pariah when he shoots a man dressed as Santa Claus. Then he must clear his name and foil a larger criminal plot, all in time for Christmas.

Monk joins a cult to solve a murder case, but becomes entranced by the cult's charismatic leader.

Monk searches for a killer who is apparently targeting women with the name Julie, a name which Natalie's daughter shares.

Monk decides to take up painting as a hobby, and discovers an ardent admirer willing to buy anything he produces.

After listening to Trudy's last message, Monk finally discovers who killed his wife. Racing against time before he dies of poison, he must make a fateful decision.