Soon DI Spicer finds himself hunting a killer dubbed the Monster of the Moor, a creature whose stealth and savagery strike terror into the local population.

• 中文概要：在靠近曼彻斯特的沙德伍兹沼泽，有人发现一具女尸，她的喉咙被人抓破了。发现女尸的地方曾有无数人看见过一只神秘的巨大黑豹。