This is the story of four French friends: the Greek (an osteopath), Fifi (who lives with his mother), Fortuné (a West Indian) and Freddy (a gambler). They meet up regularly at a Parisian bookmakers’, their favourite haunt. Tired of frittering away the little spare cash they have, they agree to give up gambling. But no sooner have they taken this pledge than Fate intervenes, in the guise of the turf king, Monsieur Paul. The latter persuades the four friends to buy a champion racehorse, not knowing that it is in fact an old nag…

故事描述雨果是一名专医赛马的兽医，他在社交名媛授权下负责管理一所疗养院。这个地方本来属于茱蒂的产业，可是她抵押给名媛之后却无钱赎回来，最后在汤尼与斯塔弗雨兄弟及一匹名为高帽子赛马帮助下，茱莉终于把疗养院赢回来。

Bruno Fioretti, known as "Mandrake", is an inveterate gambler who never misses a day at the horse racing track in Rome. He is doubly unlucky: he bets too much on one horse, and his wife is sleeping with his best friend because Mandrake is always at the track. Penniless and cuckolded, Mandrake decides to make one last bet.

律师史蒂夫（迪恩·马丁 Dean Martin饰），有一个美丽的太太梅兰妮（拉娜·特纳 Lana Turner饰），两人婚后几年都过着美满的生活。然而，最近一年来，史蒂夫对太太貌合神离，梅兰妮暗中注意，发觉他同时也花钱不少，怀疑他对她不忠。