五年前，卓瑾澍是心理医学界的后起之秀，是一颗闪耀的新星，不但出书被邀请到处演讲，还是各大媒体的心理咨询顾问，许多社会名流也因此找上他当心理治疗师，一时风光无两。然而，忙于工作，享受在聚光灯下的瑾澍，却忽略了在灯光外的女友宋洁芳，完全没有意识到洁芳的吃醋，原来是“妒忌妄想”的症状。一次的病发，让洁芳失去了理智，拉着瑾澍一起跳楼，导致她意外身亡，自己则受了重伤。目睹了至爱在自己眼前死去，瑾澍心理受到了空前的震撼，因而患上了“创伤后症候群”。备受良心谴责，内疚不已的瑾澍，出院之后就失踪了，从此在医学界销声匿迹。

Five years ago, Toh Jin Shu was a shining star in the field of psychology. Sought after by the media and rich clients, he basked in his own glory and neglected his girlfriend Song Jie Fang. Jin Shu is not aware that Jie Fang suffers from delusional jealousy, she died when she jumped down the building pulling Jin Shu with her. Jin Shu survived the fall but was guilt-stricken that he did not discover Jie Fang's illness. He disappeared from the medical world and was never heard of again. Five years later, Jin Shu appeared in a quiet neighbourhood working as a plumber. He rented a small room from landlord Qin Xiu Xiu and no one knew his past. As Jin Shu gets to know his neighbours better, he discovers that they suffer from psychological problems, including Xiu Xiu. Unable to look the other way, he starts helping them. But his ex-patient, Loo Hai Ning found his hiding place, her appearance starts to complicate matters.