Owned by My Husband's Sister

Sophia has been married to Daniel for five years. She finds out he has been sleeping with her younger sister Casey for a long time. After a car accident she pretends to have lost her memory to see what the two of them will do with it. Daniel wants her gone, so he tells her she is not his wife at all but the wife of her elder sister Taylor. Taylor fell for Sophia the first time she saw her. She goes along with the lie and stays with her, and moves from kisses to nights together until Sophia is in love with her. At a party Casey pushes Sophia into a pool in front of the guests. Taylor goes in after her and tells everyone watching that Sophia is hers. Daniel is left with his regret and Casey with her jealousy, and Sophia kisses Taylor in front of all of them.