三个钻石王老五：建筑师彼得（汤姆•塞立克 Tom Selleck 饰）、艺术家麦克（斯蒂夫•古根伯格 Steve Guttenberg ）和演员杰克（特德•丹森 Ted Danson 饰）合住在曼哈顿的一套高级公寓内，三人风流成性，过着悠然自得的生活。然而，这种生活就在杰克出外地拍片的某天早上被打破了。另外两个室友在公寓门口发现了一名被遗弃的女婴，据遗弃者留下的字条称，这是杰克的亲生女儿。彼得和麦克只得将女婴抱进屋内，开始了“初为人父”的生活。虽然两人经常应付各种各样的女人，然而应付女婴还是第一次。他们被女婴搞得手忙脚乱，焦头烂额；然而通过一阵子的相处，他们内心的父爱情结又油然而生……

　　Released in France as La Kermesse Heroique, Carnival in Flanders is set during the long-ago war between the Dutch and Spanish. A tiny village in Flanders is invaded by Spanish troops. The townsfolk have heard of Spanish cruelties in other towns, and decide to deflect the vanquishers by playing dead. This isn't terribly effective (you have to take a breath once in a while), so the wife of the burgomaster tries to soften up the invaders with a lavish carnival. So successful is this venture that the Spaniards allow the village to escape being decimated, or even taxed. An award-winner many times over, Carnival in Flanders was banned in Germany; evidently, Goebbels caught on that director Jacques Feyder and scenarists Bernard Zimmer and Charles Spaak were drawing deliberate parallels between the Spanish and the then-burgeoning Nazis.