An ailing barrister defies doctor's orders to defend a man accused of murdering his mistress. The defendant is eventually acquitted but a series of surprise revelations convinces the lawyer that the verdict was the wrong one. Billy Wilder's adaptation of Agatha Christie courtroom drama, starring Charles Laughton, Tyrone Power, Marlene Dietrich and Elsa Lanchester.

An ailing barrister agrees to defend a man in a sensational murder trial where the unconvincing testimony of the defendant's wife becomes a subject of confusion.