Det.Sgt. Joe Friday is called back from his vacation to work with his partner, Off. Bill Gannon, on a missing persons case. Two amateur female models and a young war widow have vanished, having been last seen with one J. Johnson. In the course of tracking down Johnson and the young ladies, the detectives wind up with two different descriptions of the suspect, one of which closely resembles a dead body found in a vacant lot. But the dead man, later identified as Charles LeBorg of France, proves not to be J. Johnson, when a third young model disappears.