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.这个姓氏是他们的祖先很(hěn )久之(🔍)前，久(jiǔ(😌) )到他们自己也不(bú )知道什么时候。