Max admits to killing the young woman whose still-warm, disembowelled body was found beside him - but he claims to be suffering from DID, a multiple-personality disorder and common alibi for murderers. Strawberry-blonde psychiatrist Irene Cogan is brought in to assess his claims and is astonished to find that Max has many more alters - or alternative personalities - than any DID sufferer she's previously encountered. But what Irene doesn't know is that one of those alters is a suspected serial killer the FBI know as Casey - a man responsible for the disappearance, and almost certain death, of several women. Women with just one thing in common - strawberry-blonde hair.