La Madrastra (lit: The Stepmother) is a Chilean television soap opera created by Arturo Moya Grau, that aired on Canal 13 from April 21 to September 18, 1981, starring Jael Unger and Walter Kliche.

The series starts twenty years earlier when a group of Chilean friends travel for fun to Los Angeles, United States.

Every friend Marcia thought she had shuns her, including her husband Esteban San Lucas (Walter Kliche), who leaves her in the United States and forces her to sign a marriage annulment.

Days later, the group of friends receives an invitation to a hotel where they find out that they have been summoned by Marcia herself, who has returned to reclaim her children and finally discover Patricia's real murderer.

[6] Director Óscar Rodríguez, said that "It was heard that meetings from top executives and ministers were postponed" ("Se supo de reuniones de ministros y ejecutivos que fueron suspendidas") and that "that afternoon, there wasn't a single soul walking the streets of the city and that soda fountains in Santiago's city centre put up signs saying "Here we watch La Madrastra.""

Additionally, La madrastra touched on the impact that this soap opera had on the careers of the actors, specially the role of Gloria Münchmeyer as Estrella, the killer of Patricia.

[9] In 1985, Televisa purchased the original screenplay, adapting it and shooting a new version called Vivir un poco, which was premiered in Mexico on July 29, 1985, on Canal de las Estrellas starring Angélica Aragón and Rogelio Guerra.

That same year was launched the American version called Forever, that aired on the Fox network from June 10, to September 27, 1996, comprising a total of 80 episodes, starring Maria Mayenzet and Mark Schneider.