À Londres, le soir du Nouvel An, Martin, Maureen, Jess et J.J. décident d'en finir avec la vie. Comble de malchance, ils se retrouvent sur le toit du même immeuble... D'abord surpris, ils sentent leur détermination laisser la place au doute. Les langues se délient, chacun raconte sa vie, ses déceptions. Et tandis que file la nuit, l'aube apporte au quatuor une planche de salut inespérée...

For disgraced TV presenter Martin Sharp the answer's pretty simple: he has, in his own words, 'pissed his life away'. And on New Year's Eve he's going to end it all . . . but not, as it happens, alone. Because first single-mum Maureen, then eighteen-year-old Jess and lastly American rock-god JJ turn up and crash Martin's private party. They've stolen his idea - but brought their own reasons. Yet it's hard to jump when you've got an audience queuing impatiently behind you. A few heated words and some slices if cold pizza later and these four strangers are suddenly allies. But is their unlikely friendship a good enough reason to carry on living?