Detective John Cabrera must piece together the clues of Dorothea Puente’s dark past to form a picture of the grandmotherly serial killer. Meanwhile, Puente is hiding out in an L.A. motel, and lining up her next victim – an elderly man she meets in a bar. But when the man recognizes Puente’s face on the news, he contacts the police and Puente is caught. Back in Sacramento, prosecutors embark on the case against Puente, and after a long, difficult trial, the judge sentences Dorothea Puente to life in prison.