Netflix's documentary 'Un hijo propio' revisits the 2009 case of Eleonor Alejandra Marín Mendoza, a Mexico City hospital worker who faked a pregnancy and abducted a newborn. Directed by Maite Alberdi, the film premiered on August 13 and is among 17 titles vying to represent Mexico at the Oscars and Goyas .
On June 17, 2009, Marín, then 26, took a day-old baby from the Hospital General de México, hiding her in a paper bag. Police found the infant unharmed hours later in a hotel with Marín and her husband, Arturo Calderón Gamiño . Marín claimed the biological mother, Mayra Aurora Navarro Vega, had given her the baby, but Navarro denied this, saying Marín posed as a social worker .
Marín was convicted of child abduction and sentenced to over 13 years in prison, served at Santa Martha Acatitla . She was released in 2023 . Her husband was also detained for over two years but acquitted .
Alberdi, who met Marín in prison while working on another project, uses dramatizations and interviews to explore the social pressure on women to become mothers, a theme she calls "universal" . The film contrasts Marín's account with official records and the mother's testimony . Actress Ana Celeste Montalvo, who plays Marín, said she gained 10 kilos and isolated herself to embody the role .
Sources differ on the sentence length: some report 13 years and four months , others over 13 years , and one says more than 10 years . Marín maintains her innocence, claiming the baby was a gift .