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.