Sara and Enrique’s marriage is going through a monotonous crisis that Enrique is blind to see. Fortunately, Sara meets two people who might hold the key to saving her marriage: Lucy and Ricardo, a beautiful couple who are in an open relationship. Sara sets out to persuade Enrique, and after much prodding, many cringe encounters, and a near-panic attack, Sara eventually gets Enrique on board. Surprisingly, Enrique takes to the open relationship lifestyle, giving way to an all-new, kinky, confident ladies’ man. But when hormones betray feelings, both couples find their relationships pushed to a breaking point. Mexican remake of the Argentine comedy “2 + 2”.