A dying woman staggers from the shadows of the Houston docks. Flinging herself at a passing squad car, she attacks the cop who comes to her aid – biting away part of his face before she dies in agony. Meanwhile, in a wealthy neighbourhood, another beautiful woman is dying the same hideous death. Her body will be found floating in a bayou – yet the coronor’s finding is that there is no evidence that she drowned or that there was any violence. Detective Stuart Haydon can’t be sure that it is murder – but when another high class prostitute dies mysteriously, he begins a manhunt that will take him to the underworld of high rollers and sex slaves. With the help of a beautiful young call girl, Haydon must set a trap for the most inhuman killer he has ever faced.