Pablo and Blanca have decided to try swinging, but ignore its first and most fundamental rule: to abstain from doing so when things aren't going well in a relationship. To bring this about, Pablo and Blanca each call a friend who is single, Lucas and Mia respectively, thereby ignoring the second cardinal rule: to only swing with another couple.

• Cosabona Films
• Enrique Arce
• Macarena Gómez
• Luis Miguel Seguí
• Lorena López
• Paco Alegre
• Diego Braguinsky
• Ainhoa Cebriá
• Marisa Merino