A young Jeffrey Dahmer matures in a broken household. In his own chilling words, he reveals details of his morbid path towards his first murder, mirroring his father's early troubled fantasies.r.

Lionel Dahmer sends Jeffrey away, first to college, then to the army in an attempt to straighten him out. As an army medic, Jeffrey starts terrorizing his roommate before he's honorably discharged.

Jeffrey Dahmer moves to Milwaukee, free to prey on the city's thriving gay scene. He secretly lives out his darkest fantasies, killing and cannibalizing 15 young men and boys in just over 3 years.

Jeffrey Dahmer is arrested and sentenced to life. Behind bars, he seeks redemption and reconnects with his father through religion. But for the victim's families and friends, the pain continues.