Estela Durán (Meche Barba) is a young Cuban woman of humble origin, who lives with her nanny Mama Irene (Fedora Capdevila).
Arriving in Mexico is related to Oscar (Crox Alvarado), one of the partners of the producer who would meet her whims to get into trouble because of the debutante.
On the set of a movie, Estela knows Manuel (Fernando Fernández), who works in the camcorder stagehand and sustains a romance, until she meets Jose Antonio (Alberto González Rubio), a millionaire who she falls in love.
In Ambiciosa, Meche Barba is a young woman that climbs the ladder of the film industry through false and empty relationships.
It is a curious and interesting film, made at the end of a filmography that Barba unexpectedly cut the following year.