Tragically mysterious deaths have occurred, and English schoolgirl Liz Dunn (Thora Birch) knows what happened, so psychiatrist Philippa Horwood (Embeth Davidtz) is brought in to investigate. Liz's story: Her friend Martyn (Daniel Brocklebank) sealed her, her pal Frances (Keira Knightley) and handsome classmate Mike (Desmond Harrington) in a bomb shelter and left them to die. Only that might not be true, as Martyn claims Liz masterminded the plan that brought about such disturbing consequences.