Residents of a rundown boardinghouse in 19th-century Japan, including a mysterious old man and an aging actor, get drawn into a love triangle that turns violent. When amoral thief Sutekichi breaks off his affair with landlady Osugi to romance her younger sister, Okayo, Osugi extracts her revenge by revealing her infidelity to her jealous husband.

Anna falls madly in love with an Italian violinist, who instead marries her sister Monika.

The vaudeville act of Harriet and Queenie Mahoney comes to Broadway, where their friend Eddie Kerns needs them for his number in one of Francis Zanfield's shows. When Eddie meets Queenie, he soon falls in love with her—but she is already being courted by Jock Warriner, a member of New York high society. Queenie eventually recognizes that, to Jock, she is nothing more than a toy, and that Eddie is in love with her.

A middle-aged houseguest causes romantic turmoil when he falls in love with his host's teenage daughter.