Two couples (Javier/Sonia and Paula/Pedro), very good old friends. One day, Paula end his relation with Pedro for another mystery man (who is not other than Javier). They have a friendly break up, but Pedro obsessed tries to find out who is the other guy asking Javier for help. Javier, is not sure about leaving Sonia creating a crisis on his new relation with Paula, plus the problems trying to hide everything to his best friend.