A film producer (Guy Doleman) devises a deadly plan to finance a project.

Rex Lander (Paul Daneman) is prime suspect in his rich uncle's murder, but there's no evidence to pin it on him.

The chief suspect in a series of jewel robberies is found dead.

A murderous jewelry heist attracts an ex-partner of the killer, a master criminal who's never been caught. His personal nemesis,a retired detective, joins Scotland Yard to crack the case, in turn recruiting the thief's estranged wife.

When a hired server is killed after a party for an artist and his fiancée, and soon after, the girl's hot tempered, disapproving old uncle is murdered too, the police look for a connexion. The clues available include a small, brightly painted key to the old man's safe, and some wigs found in an abandoned apartment near a crime site.

An ex-con goes looking for his late cellmate's hidden loot.

A rich man's secretary/fiancée is harassed by an assistant, who's sacked. Dangerous accidents start occurring and the assistant is suspected, but he's suddenly murdered just as he plans to meet with a Scotland Yard inspector.

A young couple go to check out a house they're thinking of buying. A somewhat mysterious woman tells the couple several stories of the fates that befell the house's previous owners.

A cracked safe seems like routine to the police, until the owner of the business is found dead the next morning and they find that a lot more money was in the safe than he had said. Where did he get it and why was it there?

Wally Sanders, a horseracing jockey, loses a race and crashes his car to claim an insurance. Jim Matthews, a shrewd and energetic insurance investgator, follows up the company's suspicion of foul play and stumbles deep into a web of corruption concering fixed horse races.

A body found in the River Thames is of an archaeology professor, murdered over three small fragments of an ancient text that could serve as a pretext for a red China-like country to invade a Nepal-like country.