Dr. Ko Lap Yan (played by Francis Ng), a senior psychiatrist at Renhe Hospital, is a highly skilled and compassionate doctor who treats a range of conditions from severe schizophrenia to mild psychological distress. Dr. Ko doesn't just rely on medication for treatment but also conducts psychoanalysis to trace the root cause of his patients' symptoms, leading to intriguing and thought-provoking processes.
Dr. Ko's friends include fellow psychiatrist Dr. Lian Zhi Chen (played by Michael Tsang) and nurse Li Ying Chun (played by Raymond Lee). Ying Chun is equally dedicated to helping others, overcoming numerous obstacles while caring for a patient with bulimia, Sun Ga Bi (played by Yeoh Sau Hoon), eventually becoming her boyfriend.
Dr. Ko has experienced a failed marriage and has a daughter. After his divorce, he lost hope in love until he met Serious Crime Unit detective Mo Min'er (played by Sandy Lam). The two developed mutual feelings through frequent professional collaborations, but Min'er, suffering from a family history of mental illness, fears a relapse and refuses to accept Dr. Ko's affection...