Hailey and David have always been a faithfully married couple. Ginny, a newcomer to the couple's group of friends, is having a rough time. She's going through a breakup and is looking for a shoulder to cry on. Unfortunately, the shoulder she is seeking out belongs to David. Hailey wouldn't mind so much if it weren't for the fact that Ginny has always wanted to steal David from her. Now she's invited herself into the happy couple's home and is misbehaving. Hailey knows she's going to have to do something to save her marriage. But the steps she ends up taking are the last she would've ever suspected.