Jason (Jason Bateman) and Cynthia (Kristen Bell) are close to getting a divorce. To save their marriage, they reserve a vacation to couples therapy retreat called Eden. Of course if they want to save money, they must encourage someone else to join the therapy. Then Jason and Cynthia invite their friends and claim that they can enjoy th party activities without taking part in the therapy.
Reluctantly their friends, Dave (Vince Vaughn) and Ronnie (Malin Akerman), Joey (Jon Favreau) and Lucy (Kristen Davis), and recently divorced Shane (Faizon Love) and his girlfriend Trudy (Kali Hawk) agree.
Upon their arrival to Eden they are sent to the west side of the island, by Sctanley (Peter Serafinowicz). Joey learns that the east side of the island hosts a singles resort, while the west is for couples, and couples are not permitted to travel to Eden East.
During their first night Sctanley informs all four couples that they will all have to engage in the therapy or return home. After eating their meal the couples decided that they will attend the therapy so they can enjoy the other benefits the island offers. After their first therapy session all four couples learn they have problems with their relationships and even Ronnie and Dave, who thought they were fine, need the therapy.
Now in theater.