Captain Hugh 'Bulldog' Drummond investigates the murder of the C.I.D. man who had been tracing validity of rival claims to a large estate.

A car accident traps two men inside a car near the water. With the tide coming in, they discuss the circumstances that led up to the accident.

In this thriller, psychiatrist Dr. Cross kills his wife and expects to get away with murder, until he discovers that the slaying was observed by a next-door neighbor, Janet Stewart. As Janet attempts to convince her husband of the doctor's dastardly deed, Cross shows up to advise him that Janet is in dire need of some in-depth counseling.