The Man Who Cheated Himself is a 1950 American crime film noir directed by Felix E. Feist and starring Lee J. Cobb, Jane Wyatt and John Dall.

[2] Wealthy socialite Lois Frazer, divorcing her fortune-hunter husband, Howard, finds a gun he had bought.

She kills him with it in front of the new man in her life, Lt. Ed Cullen, a homicide detective with the San Francisco police.

The gun is found and used in another killing by a young punk, Nito Capa, and Cullen—with few options to save himself and his paramour Lois—tries to pin both crimes on him.

In desperation, Ed knocks Andy out, ties and gags him, and calls Lois and tells her they need to flee.