Directed by Joe Menendez, director of films like 'Ladrón que roba a ladrón' and 'Los imaginadores, 'Quiero ser fiel' revolves around Albert marries the woman of his dreams after spending a life of being an entirely womanizer. He vows to be faithful but everything trastocará when an editor sends him to write a book about why men are unfaithful. So, you will embark on a journey where he will face situations that will jeopardize their loyalty and finally finish the book.