: The documentary questions the morality and efficacy of the death penalty, suggesting that the system often ignores the complex mental health issues of those it executes.

The "piece" focuses on her career-long quest to understand why people kill, specifically challenging the idea that murderers are born "evil". Key Themes & Content

: Dr. Lewis argues that violent behavior typically stems from a "triad" of factors: severe childhood physical/sexual abuse, neurological brain damage, and psychiatric illness.

: Described by critics as a "spry octogenarian" and a "born detective," she is portrayed as a fiercely empathetic figure who has often been a skeptic's target in the psychiatric community. Where to Watch

: Much of the film explores her belief that many serial killers suffer from DID (formerly Multiple Personality Disorder). It features rare interview footage with infamous killers like Arthur Shawcross and discusses her sessions with Ted Bundy .