I was surprised how bad this film is. I browsed the "Critically Acclaimed" section and thought it was sold well and was gonna be a winner, but no, it is such an unbelievable set of events.
It's as if they've asked a bunch of school kids 'What do you think adults get up to when you're at school or in bed?' and they went on to make a film about the random fantasies that spilled out.
To quote one of the characters "It's absolute toilet" so I recommend Falling Down instead