Lt. Columbo goes undercover to solve an unusual double murder in which two men have apparently killed each other over a puzzling piece of paper, which sends Columbo and the homicide bureau into a wild goose chase.

Cigar-chomping Lieutenant Columbo's investigation into the odd death of two men flings him headlong into a mystery revolving around the long-lost loot from an unsolved bank heist. Insurance investigator Irving Krutch asks for Columbo's assistance in tracking down the pieces of a photograph that will reveal the location of the hidden millions. To do so, Columbo must go undercover in various guises to obtain the pieces from the various people who now possess them. But in the course of the investigation, more than one of these people will be murdered, and Columbo can't shake the feeling that Krutch is somehow responsible for the entire bloody business.—Leaper