在黑暗中探寻那禁忌的乐趣，心跳如雷，欲望如火。重生之末世军嫂杨茜

　　Three young couples are renovating together a loft in Paris. During a barbecue, Patrick and Julie confess to their friends that they practice partner-swapping. That information shock 1 of the couple, but the other one seems to be interested..