As a string of brutal murders plague the city, two undercover detectives race to solve the mystery and unmask the killer. Their only clues: each victim is a former cop and each has a blood-red letter painted on their body. How many will have to die before the killer spells out their message in blood?
一个名叫凯蒂的女人,被出轨照片勒索,因为一次莫名其妙的心血来潮。穷途末路之下,唯有致命报复。