Magaly enters a TV contest looking for Marilyn Monroe look-alikes, pressured by her husband and a money prize of $25,000 to help them overcome their precarious financial situation.
During the casting for the contest, Magaly meets Norma, her strongest and cheating competitor, a voluptuous version of Marilyn; and Rossel, the sponsor, a well-suited millionaire who is sure about conquering her. Looking for an adviser for the contest, Magaly and Arturo find Hector, a transvestite that believes himself to be Monroe's reincarnation.
He tries to do with Magaly what he can't do with himself as a man: to become the real Marilyn Monroe. In the process of "becoming" Marilyn Monroe, Magaly suffers an identity crisis that mimics the life of the mythical blonde.