Ralph and Smith are flatmates and best mates--until, that is, the gorgeous Jemima moves in. Then suddenly they're bickering about a lot more than who drank the last beer. Of course, Jem knows that one of them is the man for her--but is it Ralph or Smith? Upstairs, Karl and Siobhan have been happily unmarried for fifteen years--until, that is, Cheri moves into the flat above theirs. Cheri's got her eye on Karl and doesn't see why she should let a little thing like his girlfriend stand in her way... Sooner or later it's all got to come to a head--and what better place for tears and laughter, break ups and make ups than Ralph's party?
