菲力(杰克·莱蒙 Jack Lemmon 饰)的个性古板众所周知,这一特点随着他年龄的增大显得越来越明显。生活里,菲力是一个非常挑剔的刺头,太多的事情让他觉得不满,而他正是那种觉得不爽就一定会说出来的人。奥斯卡(沃尔特·马修 Walter Matthau 饰)曾是一名体育播报员,外表邋邋遢遢的他在生活里也得过且过不拘小节。 两位老友因为他们迥异的性格在相处的过程中产生了诸多的矛盾,终于,在一次激烈的争吵后,他们决定绝交。然而命运是奇妙的,虽然两个老头水火不容,但他们的孩子却即将携手步入婚礼的殿堂。这也就意味着,菲力和奥斯卡必须再度共处一室,出席孩子们的婚礼。It has been seventeen years now since Oscar and Felix saw each other for the last time. Oscar is living in Florida, Felix in New York. One day, Oscar is called by his son Brucey who invites him to his wedding to Felix' daughter Hannah next Sunday in California. Oscar and Felix meet again at Los Angeles International Airport and take a rental car in order to go to San Malina for the wedding. The trip develops into an odyssey, starting with Oscar forgetting Felix' suitcase at the Budget station, going over to the complete loss of the directions (and the car), several difficulties with the police, a dead person, a toupee, underwear and revenge-hungry Cowboys and ending up with Felix meeting the "one and only" woman. But the wedding has to be reached on time.