Brett Halliday's pulp detective Michael Shayne (Lloyd Nolan) poses as the husband of millionaire's daughter (Marjorie Weaver) to smoke out the man who is trying to kill them.

In the shadows of the night Dudley Wolff, his secretary Alfred Dunning, and his doctor, Haggard, bury a body in the estate cemetery. At the house, Wolff's daughter Catherine arrives unexpectedly and tells her step-mother Anne Wolff that she has just been married to Roger Blake who will be along in a few days. Cathy retires and is awakened by a mysterious assailant who fires a shot at her, but her parents tell her she was just dreaming. Wolff goes to the cemetery and finds the body missing. The scared Cathy calls in fast-talking private detective Mike Shayne and, since her father doesn't like detectives, she introduces him as her husband. That evening Shayne hears a shot and finds that Haggard has been killed. While the police are questioning the family, the lights go out and a shot is fired from outside. Written by Les Adams