Netflix Documentary Explores 2009 Mexican Newborn Kidnapping Case

Netflix has released a documentary titled My Own Son (Un hijo propio), directed by Maite Alberdi, which reconstructs a 2009 case in Mexico City involving a woman who faked a pregnancy and kidnapped a newborn. Eleonor Alejandra Marín Mendoza, a 26 year old administrative employee at the General Hospital of Mexico, spent months pretending to be pregnant to deceive her husband, family, and doctors. To simulate a pregnancy, she consumed junk food to increase her weight from 54 kg to over 89 kg. On June 17, 2009, Marín Mendoza took a newborn baby, Katya Valentina, from the hospital in a gift bag or paper bag. Authorities located the baby and Marín Mendoza at a hotel in east Mexico City a few hours later. Marín Mendoza was sentenced to over 13 years in prison for kidnapping and was released in 2023. Her partner, Arturo, was detained but later acquitted due to a lack of evidence. The biological mother, Mayra, stated that Marín Mendoza approached her under the guise of conducting a hospital survey before the baby was taken. While Marín Mendoza claimed she had an agreement with Mayra to take the child, the family and investigators determined the theft was planned. The documentary uses a blend of stylized dramatizations and prison interviews to explore the event. Center and center left sources frame the story as a study of the social and psychological pressure to become a mother, while the center right source frames it as a shocking crime that raises questions about social expectations and the limits of human behavior.