改编自爱奇艺小说作者初墨不姓熊《误杀记忆》。 六年前，因为一场车祸，苏软昏睡病床。六年后，她奇迹般苏醒。 回到家中的她意外发现了一本日记本，日记本确定是她的笔迹，时间是六年前。 日记本记录了一件关于她的秘密，她杀了人。 苏软对这部分的记忆全无，她患了心因性失忆症中的局部性失忆症，选择性遗忘了一些发生过的事， 她丧失地部分记忆，以日记这种特殊的方式储存了起来，然而因为日记本存放年久，后半部分受潮，字迹变得模糊不清无法辨认。 苏软不愿意相信自己杀了人，她身边多了一个又一个的陌生人，他们的目的，直指六年前废弃医院的凶杀案。 苏软不得不踏上了自证清白之路。
该剧讲述了姜台风（李俊昊 饰）的成长故事，他是一名小企业的首席执行官，努力在1997年的IMF金融危机中生存下来。
The Guest (4x60) is an addictive, fast-paced story that centres on the toxic and beguiling relationship between a successful business owner, Fran, and her employee, Ria. Ria has never had the time or opportunity to think about what she might actually want from the world. So, when she starts cleaning for Fran, she’s intoxicated by this confident and self-assured woman who encourages her to take control of her life and, when Ria flourishes, an intense friendship is forged. However, when Fran’s advice leads to a shocking event, the lives of these two very different women become intertwined by shared secrets and dangerous plots. What follows is a compelling and manipulative game of cat-and-mouse. But just who is playing who?
