 Harry Dobbs is a private detective who has to spend a lot of time away from his psychotic girlfriend. He gets hired by miss Dolan to follow a man with whom she is in love. The man he follows turns out to be a bigamist, and when Dobbs follows him to his second family, his girlfriend Doris hires a private eye of her own to follow him and see what he is doing. The two private investigators meet, fall in love and live happily ever after.