讲述两个男人为了抓住连环杀人犯而违反法律和原则的故事。“谁是怪物！是你，是我，还是我们？”
该剧讲述女主姜智媛得了癌症，她目睹闺蜜和老公出轨，还被自己的老公杀死后,她突然穿越回到10年前，与同公司部长一起展开复仇的故事。
Follows Morgan, a single mother of three with a brilliant mind, as she rearranges some evidence during her shift as a cleaner for the police department, aiding in the resolution of an unsolvable case.
