心理學家凱特科維奇博士必須做出終局裁決：被控殺死警察的克莉絲汀索爾特是否患有嚴重的多重人格障礙。最初，凱特震驚地發現自己面對的是一個非常兇狠好鬥的年輕女子，不僅剃著一個光頭，滿身都是監獄刺青，但後來，隨著調查的漸漸深入，她開始認為一切另有隱情。
When psychologist Kate Kovic is asked to evaluate the sanity of a young girl on death row who is exhibiting signs of multiple personality disorder, she has only seven days before the scheduled execution to determine whether the girl is faking her condition to avoid the death penalty or if her personalities are in fact the missing clue to the unsolved murders of The Toyman Killer.
