在这部恶意犯罪/悬疑/惊悚片中,幼儿接连失踪被害，警方线索了了，无从下手。刑探队长张驰无意发现养女慧慧成为凶手下任目标，在决定实施保护同时突然萌生依靠慧慧实施诱骗的想法。不料，狡诈凶犯诡计先行，警方失误，慧慧落入危机。张弛负罪感下，内心经受道德拷问，决定勇闯腹地营救慧慧，独自走上救赎之路。
Detective Zhang has been investigating into a case for several months but the murderer is still hiding. So Zhang decides to tempt the criminal by a little girl. There's only one choice for Zhang:insuring the safety of the girl,or catching the dangerous killer?
