The documentary Maternal Instinct explores the murder of 21-year-old Reagan Simmons Hancock, a pregnant woman who was found dead in New Boston, Texas, with her unborn child stolen in October 2020. Investigators eventually connected the horrific murder to Taylor Parker, a 27-year-old woman who claimed to be pregnant, who was convicted in 2022 for killing Hancock and is now on death row in Texas. Structured as part- true crime investigation and part-psychological portrait, Maternal Instinct