同一场婚礼竟然出现两个版本。山姆·克拉弗林饰演的杰克身为新娘的哥哥,得轮番应付火大的前女友(芙蕾达·苹托饰),一位怀有秘密的不速之客,一颗被乱放的安眠镇静剂,以及当年追不到的梦中情人(奥莉维亚·玛恩饰)。一场婚礼,两样结局。While trying to make his sister's wedding day go smoothly, Jack finds himself juggling an angry ex-girlfriend, an uninvited guest with a secret, a misplaced sleep sedative, and the girl that got away in alternate versions of the same day.