Married couple Ashley and Tanya are seasoned swingers, but there's one boundary the Leeds couple have never previously crossed - trying to seduce and have sex with other people on their own without the other one present. After nearly walking out of last night's social, Jamie and Sharmayne still aren't sure how far they can go, so non-monogamy coach Effy orchestrates a sexy pool party to help them loosen up. After a cocktail date with resident couple Jen and Marc, they're forced to make the ultimate decision.

Married couple Sharmayne and Jamie want to open up but are both very anxious because they've had so little sexual experience with other partners. As their future at the retreat hangs in the balance, Jamie is left wondering if they can move forward together. Engaged gay couple Simon and Chris are trying to have sex with women. After a hot tub date with residents Jen and Naomi, Simon decides he's keen to take things further, but Chris is hesitant.

Chris and Simon, the retreat's first gay couple, are engaged to be married. Neither of them have ever had sex with a woman before, but as they approach their big day Simon wants to explore whether or not he might be bisexual and work out what that means for his identity and their relationship. Meanwhile, Tom has erectile concerns and is wondering whether participation in an orgy might help. He and his fiancée Lauren consider whether to have sex away from each other in separate rooms with resident couple Gage and Olivia.

Engaged couple Tom and Lauren have been trying to open up their relationship, but stage fright has meant that Tom has struggled to rise to the occasion. If he cannot perform, might it signpost the end of their relationship? Alex's confidence is rattled after watching partner Alana have wild sex with resident Georgie. He still hopes to bounce back from this setback to fulfil their dream of a full couple swap.

Claude and Amy head to the red room with resident Georgie, hoping to find the right blend between instant sexual gratification and deep emotional connections. Alex and Alana, a young couple with two young children, describe themselves as 'sexual adventurers' and want to open up with like-minded others. However, Alana has a jealous streak, which she knows she must overcome.

The new series continues, as committed couples explore whether having open relationships and sex with other people can strengthen their bond. Essex couple Claude and Amy have a blended family of six children and want to form long-term sexual and emotional relationships with as many partners as possible. But first, they have to see if Claude can overcome his guilt issues and be sexually intimate with another woman. Meanwhile, Welsh couple Jonny and Sarah have fallen for the gallic charms of French lingerie model and resident Marie, but will she agree to help them finally have sex with other people?

The series where committed couples explore whether having open relationships and sex with other people can strengthen their bond. Welsh couple Jonny and Sarah have been trying to open up for two years but keep bottling out at the last minute. Will they be able to overcome their nerves and how will Jonny feel if he needs to share Sarah with another man? Tanith and Paul have to confront the fact that their partners Mark and Chloe had sex with multiple people on their first night at the retreat while they went back to their bedrooms alone. Will they be able to partake in sex with their partners and other people on their second night? 

Open House is back with a bang, with a sexy gang of new residents and a new open relationship expert. Mark and Tanith from Yorkshire want to find out if having sex with other people can help build trust, which has been under threat due to Mark's past cheating. Married couple Chloe and Paul from Liverpool are childhood sweethearts who've never had sex with anyone except each other. Now they want to see if an open relationship can allow Chloe to explore whether she might also be attracted to women. But how will Paul react if she is?