在这部作案动机 第一季剧情/犯罪片中,一部视角独特的罪案调查剧——一般的罪案调查剧要到每一集结尾才会揭晓罪犯的真实身份，但本剧每集一开始就会把受害人的身份和凶手的身份全都告诉观众。它并不以「谁干的」为看点，而是强调「为什么」。温哥华警察局命案侦探Angie Flynn（Kristin Lehman）每天都要面对「为什么」，她必须一点一点地拼凑一起案件中所有的相关线索——凶手和受害人因为什么而相关？凶手的作案动机是什么？观众将跟随Angie和她的调查组解开一个个谜团。
来自《星际之门：宇宙》（Stargate Universe）的Louis Ferreira和来自《海军罪案调查处》（NCIS）的Lauren Holly联合主演。Louis Ferreira扮演Angie的搭档Oscar Vega侦探，足智多谋且很有耐性。Lauren Holly扮演调查组的首席法医Betty Rogers。参与演出的演员包括：Roger Cross扮演Boyd Bloom警官，Brendan Penny扮演满怀抱负的年轻侦探Brian Lucas，Cameron Bright扮演Angie的儿子Manny Flynn。
A Vancouver based murder has just occurred and been discovered. At the beginning of each episode, not only is the victim(s) identified to the viewer, but also the killer(s). The disparate group of Vancouver Homicide detectives, with help from the Coroner's office, have to wade through the evidence which will lead them through the more often than not less than straightforward path to discovering the killer(s) and his/her/their motive. That motive often is not fully understood by the detectives until they catch the killer(s). One of those detectives, quick witted and acerbic tongued Angie Flynn, often has the competing priority of raising her son, Manny, as a single mother.
每次长评都要求写标题 好烦啊！我就是想吐槽啊！。多去了解行为后的动机。微评论：作案动机S1E01。
