A celebrated author's story about a genetic experiment morphs into reality, when it is read by three strangers. Trapped in a room, the four discover that one of them must be killed to save the rest from an escaped undercover recruit.

获奖无数的畅销作家普里斯塔斯可，正为科幻新作的小说结局苦恼不已，当医生、科学家和警探都慕名而来协助他讨论出最棒的结局，他才发现书中的故事似乎和现实有所干系，沉寂已久的杀机也随着小说秘密的曝光浮下台面，这一切似乎暗示着四人的相遇并非巧合，结局的最后终究要以谋杀作结...