当一座城市被一名残忍的连环杀手所笼罩时，一位经验丰富的侦探和一位新招募的护理人员发现阻止流血事件的关键在于解开他们自己不堪回首的过去的真相。

　　When a city is terrorized by a sadistic serial killer, a seasoned detective and a newly recruited paramedic discover the key to stopping the bloodsh