When 4 American tourists - Sofia, Carl, Belle and Michael - go on a ghost tour, they get much more than they bargained for, when the ghosts of an evil Doctor and his last patient victim trap them in the old abandoned psychiatric ward.
影片改编自理查德·奥斯曼的同名畅销小说，描述四位闲不下来的退休人士认真推敲谋杀悬案解闷，却碰上了真正的命案，侦探游戏突然变成惊悚现实，而他们还得找出凶手是谁。
