Montage (2013)

Fifteen years ago, a little girl named Xizhen was kidnapped and killed. Wu Qinghao (Jin Xiangqing), a police officer of the major crime unit, promised Xizhen's mother (Yan Zhenhua) that the murderer would be brought to justice, but found nothing after a long pursuit. Seeing that the prosecution period was approaching, Officer Wu put all his eggs in one basket and missed it opposite to the suspect. After that, Officer Wu left the police force with regret and began to live a decadent life. Xizhen's mother never gave up her belief in pursuing the murder. with the body of a weak woman, she launched an independent investigation and finally found the clues left by the criminal. Not long after, another little girl was kidnapped in broad daylight, with the same modus operandi as the Xizhen case, and the police immediately set a net to deal with it. In the face of the cunning and versatile suspect, the police had to invite Wu Qinghao from the family of Xuan Fu again. The situation of the little girl is in jeopardy. Whether Xizhen's mother and Wu Qinghao can catch the prisoner will fulfill their long-cherished wish.