Morgan Caverly is just another detective in a dangerous city. When a string of murders start to happen, he's the one put on the lead for the case. Along the way, he learns a lot more about a crazed guy with too many kinks and fetishes to name; it doesn't take Morgan long to recognize that that guy is a complete psycho but he uses him to help with the murder case. Morgan just ends up learning a lot about himself while being pushed to the absolute extreme.
So who's the real psycho of the story?