It's not for nothing that the saying goes, 'Let trouble lie while it sleeps'... But Mr. Shaitana, inviting friends and acquaintances to his home for a game of bridge, forgot this commonplace adage. All evening he talked about murders and murderers, insisting that most such crimes were never solved. So he asked for it, as they say... Some time later, he was found in the living room with a knife wound in his chest. Luckily, four outstanding detectives were among the guests: Hercule Poirot, Ariadne Oliver, Superintendent Battle, and Colonel Race. A gathering of brilliant minds... However, even they must strain all their analytical abilities to uncover the killer. After all, the solution lies in the course of the card game, and the one who finds it is the best bridge player...