Replay TV Open House: The Great Sex Experiment Saison 01 Episode 01

Committed couples come to a luxury retreat to test whether opening up their relationships and having sex with other people can strengthen their bond. In this first episode, Welsh sweethearts Mady and Nathan are interested in bringing another woman into their relationship, a process that begins by having a threesome. But after their first sexual experience with an outsider doesn't go to plan, are they in danger of ruining their entire relationship? Also keen to open up their relationship are married couple Jon and Danielle from Bolton. They're interested in having group sex, but will they be able to overcome the demons of their past?