Two couples, Marc and Anna, from Spain, and Hans and Olga, from Germany, swap their homes for vacation.

Susana leaves her life in Paris, where she works as a model, and returns to Madrid to take care of her grandmother Pilar.

Álex and Abraham have a close and long-standing friendship, sharing secrets and fears as well as schoolwork. When Abraham starts going out with Anchi, a girl at their school, he…