6 out of 10 people have sex outside their relationship. Joybear Pictures has commissioned award-winning filmmaker, Oliver McDowell, to find out why? Through a group of Londoners, all willing to talk openly and be filmed having sex with their lovers, using our hidden cameras, McDowell uncovers a very naughty side to the capital. Warning! This is a series of short films containing explicit sexual content. Critics are calling this the most explicit documentary ever made.