A man tries to avenge the death of his sister, a gambling addict. Another man, an ex-convict who whistles when he commits a crime, is reunited with his blind mother.

A store clerk, a detective, the robbery of a necklace and a murder.

Two husbands use a shy teacher to cover up their infidelities, but the one out of naivety makes wives and lovers meet.

A woman's work ambition causes marital problems.

A humble and good-natured man is disappointed when the young woman he loves becomes involved with a millionaire.