William is a happy man. He has just married Isabel, the girl of his dreams, and is confidently sailing along on a sea of wedded bliss. He’s got a hot wife, a snazzy new job and things couldn’t be much better. Sure, there are a few bumps in the road, but life on the whole is good. That is until Isabel’s ‘best friend’ Alex starts to intrude on their wedded bliss. And when William’s ex-girlfriend Saskia - aka the ‘Destroyer of Relationships’ - appears on the scene, things go from bad to worse. For marriage, William quickly discovers, has its own set of rules.