An actor is recalled to active duty with the Army's C.I.D. to find the thief who stole historical jewels in occupied Germany and the trail leads to the boyfriend of a young debutante from Bel Air.

The wedding of Ellen and David is halted by a stranger who insists that the bride is already married to someone else. Though the flabbergasted Ellen denies the charge, the interloper produces enough evidence that his accusation must be investigated. Ellen and David travel to the small coastal town where her first wedding allegedly occurred. There, they meet a number of individuals whose stories make Ellen question her own sanity.