Saeyoung is a new employee who eventually stands against Leesun, her stubborn team leader. Leesun is upset by Saeyoung's behavior, but she soon learns about ominous stories about Saeyoung. As the stories about Saeyoung are revealed one after another, she becomes a source of fear to Leesun. Saeyoung's stalking-like bullying continues, and Leesun tries to run away from her.

　“利用尹静怡上尉的大脑数据，创造出终极人工智能战斗战士。” 　　地球因剧烈的气候变化而遭到破坏，人类迁徙到外太空的新避难所。那里发生的内战持续了数十年，尹静怡（金贤珠饰）成为了一名传奇的雇佣兵和军事战略家，战无不胜。但一次失败的任务使她处于植物人状态。克洛诺伊德研究所是一家军用人工智能开发公司，他们试图通过克隆她的大脑来创造终极战斗战士。 　　35 年后，静怡的女儿尹书贤（姜受延饰）作为“静 E”项目的首席研究员参与了这项工作。 　　尽管进行了多次克隆和模拟尝试，但进展甚微，克洛诺伊德放弃了研究，启动了另一个项目。书贤得知他们的计划后，决心拯救“静 E”项目。 　　就这样，人工智能战斗战士“静 E”从研究实验室逃跑了······

此剧讲述怀着复仇之心进入了监狱医务室的天才医生姜仁奎(高庚杓 饰)与阻止其杀人的医生高正勋(曹在显 饰)在生死岔路口发生的故事。

Having died unexpectedly, firefighter Ja-hong is taken to the afterlife by 3 afterlife guardians. Only when he passes 7 trials over 49 days and proves he was innocent in human life, he’s able to reincarnate, and his 3 afterlife guardians are by his side to defend him in trial.