Maite Alberdi premieres 'A son of my own' on Netflix, the documentary about Alejandra Marín, the woman who stole a baby in Mexico

Jorge Caballero (La Jornada Newspaper, Monday, August 17, 2026, p. 6)

Chilean director Maite Alberdi met Alejandra Marín in February 2022, while conducting research for another project in the Santa Martha Acatitla women's prison. “I was surprised by how unusual everything he told me,” the filmmaker mentioned in an interview for La Jornada. Alejandra Marín was sentenced to 13 years and four months for stealing a baby from the General Hospital of Mexico in a gift bag in 2009 and passing it off as her own, because for months she had faked a pregnancy. Alberdi knew that there was a story to tell; After working for four years, this weekend he premiered A Son of His Own on the Netflix streaming platform.

The film reconstructs Alejandra's story, adding the different voices of those involved in the case. This is the first documentary filmed in Mexico by Maite Alberdi, a Chilean director twice nominated for an Oscar (The Mole Agent and The Infinite Memory); and a feature film that breaks down the truth behind Alejandra's case, and of which, although there was great media coverage at the time, there was still much left to tell.

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