Simon Treat sets out to win back his girlfriend by making a romantic tape in Prague but his plans go awry when, filming a wedding, he has to stand in as groom.

Encounters with a singing detective, his over-sexed wife and Gina's honour-obsessed family force Simon to literally fight for his life.

Simon sends a tape to his ex-flatmates showing him living it up in the Alps. However, a mix-up of exchange rates means his overdraft is the size of the Matterhorn.