Behind the quiet domestic life of a Yorkshire housewife hides a childhood spent outside human civilization, living alongside a troop of wild capuchin monkeys in the South American jungle. This episode traces the extraordinary and contested life of Marina Chapman.

Born in Colombia around 1950 during La Violencia with no birth record, she was kidnapped, abandoned in the rainforest, and survived by mimicking capuchins after an elderly monkey led her to water. We follow her capture by hunters, a brothel, enslavement by a mafia family, her rescue and adoption, her move to England, and the split scientific debate over whether her memories are literal truth or trauma-shaped confabulation.

• How childhood neuroplasticity and mirror neurons may have driven her survival
• The tamarind poisoning and the capuchin that led her to a freshwater source
• The brutal inversion of humans exploiting her after animals sustained her
• Professor Carlos Conde’s tests versus Chris French’s false-memory hypothesis
• How her book The Girl with No Name became an international phenomenon