Gao Liren (Alex Fong), a senior psychiatrist at Renhe Hospital, lost his fiancée Mo Min'er (Tiffany Tsui) who was a detective in the serious crime team before the wedding. He immediately fell into grief and even quit his job. Unexpectedly, at this time, the hospital received a schizophrenic patient who claimed to be trapped by auditory hallucinations and was suspected of rape. Gao Liren, who was not very concerned about the case, passed by the crime scene and accidentally helped Liang Qirong (Eric Siu), a forensic psychiatrist at Bo'an Hospital, and established a relationship of both teacher and friend. Lian Zhisen (Jiang Zhiguang), who had already registered as a doctor outside, was worried about his old friend's depressed mental state after the loss of his wife, and repeatedly persuaded him to regroup. Gao Liren finally decided to work at Bo'an Hospital. At a subsequent class reunion, a murder occurred in a nightclub, and Gao Liren accidentally met the police undercover Lin Songyan (Tavia Yeung). In the process of work, he gradually became friends with consultant doctor Zhuo Huiqiao (Yellow Yoyo). At the same time, Lian Zhisen and Liang Qirong have respectively fallen into ambiguous love relationships...