There is the murder of a gangster. His girlfriend goes to stay with her mother. The mother is the housekeeper of an upper middle-class family with an attractive son. The gangster's gang follows the girl, and the police pursue the gang.

The movie opens with a murder involving gangster. His girl goes to stay with mother. Mother is the housekeeper for an upper-class family with an attractive son. Family returns early from vacation. Gangster's gang follows girl to house, police follow. Comedy ensues.