彭子刚和赵小平同住一室，房东邓氏夫妇待二人甚好，大家相处融洽。得悉有住客迁出，二人皆央求房东将房间租与其女友，互不相让。幸得房东调解，两人的女友亦同住邻房。刚朴实，女友杜芬却时髦；平好动，女友唐英却好静。两对情侣终因个性不合而分手，反与好友的对象结成美眷。

Peng Zigang and Zhao Xiaoping live together in the same room, and they get along well. When they learned that a tenant had moved out, they both begged the landlord to rent the room to their girlfriends, and they did not give in to each other. Fortunately, the landlord intervened and their girlfriends lived with them in the neighboring room. Kong is simple, but his girlfriend Dufen is fashionable; Ping is active, but his girlfriend Tang Ying is quiet. The two lovers eventually broke up due to personality disagreement, but instead, they were married to their best friend's partner.