What happens when Carlos comes to know the truth that Petrito is his son.

Isabel Montalbán moves to a small town with her husband in search of recovery for her serious lung problems. Her arrival changes the lives of the well-respected Otero family, especially brothers Sergio and Daniel.

Eight friends, all in a stable relationship, decide to venture into a game of sexual discovery by exchanging couples while trying to free themselves from their daily routine and add a spicy touch to their love life.

Three families win a million dollar prize, transforming their realities, but it will be love that will bring them back to happiness.