Following the publication of the book Sybil, the general public became fascinated with Dissociative Identity Disorder (then known as Multiple Personalities). However, nothing would capture this attention more than the case of Billy Milligan, who, after raping several women on the campus of Ohio State University, became the first person to plead insanity due to DID successfully. What followed was public scrutiny and attention, asking if he was simply faking the whole thing to avoid consequences, or if he truly had to contend with 24 distinct, unique personalities. But the story didn’t end there: there were novels published, movies in talk, and even a cross-country escape, all pointing to the question: what's the truth behind the many identities of Billy Milligan?