Billionaire, software mogul, Adam Pi has everything in life with the exception of positive memories from High School. He begrudging goes to the 20th reunion and has such an amazing time he finds himself wondering "If I knew then what I know now" and offers the entire grad class one year's salary to come back and do one more month of the 12th grade.

横跨30年的10宗灭门惨案，所有遇害家庭都有一个共通点：有一位14号生日的小女生。

影片讲述了联邦调查局特工李·哈克受命调查一桩悬而未决的连环杀人案件，哈克发现与凶手有私人关系，因此必须在他再次发动袭击之前阻止他。

一个坐了19年冤枉牢的前黑社会分子出狱后，一方面要寻找过去的仇人，另一方面要与多年未见的儿子重新培养感情，然而时日已经不多，因为他已身患绝症。