What is DID? Dissociative Identity Disorder, a dissociative disorder causing split personalities inside one individual. Also, commonly known as multiple personality disorder. If that wasn't a shitty enough situation meet the teenage girl who has it and take a look into her crazy life including the police, murder, and too many other things to bring up. Trigger Warning: Depression, Suicidal thoughts, Explicit Language, Suicide, Death, Bullying, Panic Attacks, Murder, Rape (referenced).