该电影是讲述的一个跨越超过10年的儿童绑架案，两起绑架人的作案手法非常的相同，警方和受害者家人在不断的追查这件案件的真凶，在该片当中的重案组警官陈浩许诺孩子母亲一定将凶手绳之以法，在漫长的追查过程当中却一无所获，在10年前的白兰女儿铃铛被绑架意外身亡，在10年之后的陈浩又偶然发现了新的线索，身患绝症的白兰也决定重拾兴旺，决定为自己的女儿寻找真凶，两个人展开调查并且发现了罪犯留下的蛛丝马迹，最终也是找到了和10年前如出一辙的绑架手法，找到了杀害自己女儿的凶手，本片当中罪犯杀害，绑架孩子的手法极其残忍，其中重案组警官陈浩在整个剧情当中的故事推理也相当的精彩，着重的讲述了两起案发的手法和时间，讲述了不同细节之间的一些串联

This movie is about a child kidnapping case spanning more than 10 years. In the continuous investigation of the real murderer of this case, Chen Hao, the police officer of the serious crime team in the film, promised that the mother of the child would bring the murderer to justice, but found nothing during the long investigation process. Bai Lan’s daughter Ling Dang 10 years ago She was kidnapped and died accidentally. Ten years later, Chen Hao accidentally discovered new clues. The terminally ill Bai Lan also decided to regain her prosperity and decided to find the real culprit for her daughter. In the end, he found the same kidnapping method as 10 years ago, and found the murderer who killed his daughter. In this film, the criminals killed and kidnapped the child. The reasoning is also quite exciting, focusing on the method and time of the two crimes, and telling some connections between different details