一杯人血牛奶,为何会对人产生致命诱惑?什么样的扭曲心理才会为之痴狂,甚至不惜接二连三,连环杀人?非同寻常的杀手,超越常理的罪案,需要非同一般的警探。年轻气盛的犯罪心理学高材生方木(李易峰饰)出手相助,却被卷入其中;身手不凡的野兽派刑警队长邰伟(廖凡饰)嫉恶如仇,却难以走出内心泥沼。两人联手,却成绝妙拍档!一场身手的较量,心智的角逐,随之展开…… Why does a cup of human milk cause fatal temptations to people? What kind of distorted psychology will be crazy about it, even after another, killing people in series? Unusual killers, beyond common sense crimes, need a different kind of detective. Young and energetic criminal psychology Topswood (Lee Yi-feng ornaments) shot help, but was involved; extraordinary beast Penalty captain Wei Wei (Liao Fan ornaments) envious of evil, but it is difficult to walk out of the inner mud. The two together, but into a wonderful partner! A skilled contest, mental competition, followed by ... ...