Shiba San and Meow Chan, a hit children's show in which the two brothers act a dog and a cat respectively, has been sweeping through kids and thus bringing fame to the two. Though radiant on stage, they both have something on their minds. Shiba san has been secretly in love with a married man, while Meow chan miss his remarried mother and it confused him when she abandoned him. An journey later on will lead the two strays to confront their emptiness inside.

如果婚姻是爱情的坟墓，有些人选择安乐死，自愿走入婚姻；而有些人，誓死都要活下去！ 三个不婚的死党好友－－一个是有强迫症，并且与女人绝缘的幼稚园园长张杰生；一个是花心肉食男，不愿为一棵树放弃整座森林的建筑师Peter；一个是愤世嫉俗，活在化粪池的愤青包明龙（暴龙）。这三个男人不婚的原因和理由各异，都将《结婚进行曲》视为安魂曲，禁止自己走入红地毯的那一端。然而，当爱神的箭射中他们，命中注定的女人出现，他们还能坚守各自的原则，不婚到底吗？