E1 - The Campus Rapist

Aired: September 22, 2021

In 1977, after Billy Milligan is accused of multiple rapes near Ohio State University, experts question if he has multiple personality disorder.

E2 - The Monsters Inside Me

Aired: September 22, 2021

Billy's troubled youth comes into focus via interviews with his siblings and childhood friends. At trial, his lawyers mount an unusual defense.

E3 - The Golden Age

Aired: September 22, 2021

As Billy's celebrity rises, a new doctor disagrees with his diagnosis and alters his treatment. Later, Billy takes his care into his own hands.

E4 - The Escape

Aired: September 22, 2021

With the help of friends and family, Billy goes on the run, changing his identity and mixing with some of Hollywood's biggest names.