YIK and his wife are murdered before he can expose the secrets about the Psyche Fellowship. YIK is tortured to death but all the traces have been carefully cleared. BUN suspects YUEN is the murderer. Knowing that YIK is killed, KIU sneaks out of the hospital and wants to kill YUEN. YEE takes YUEN back to the police station prior to her arrival. From the newspaper records and the behaviors of KIU, HANG figures that YUEN is the son of KIU. YUEN is not being cooperative, so BUN asks YAN to come and help. From the picture of KIU and her son, YAN gets the clue that the miserable childhood has caused YUEN a personality disorder and therefore he murdered his twin brother. It made KIU suffer from some mental illness and was sent to the hospital. YAN finally makes YUEN plead guilty. The patients under the Psyche Fellowship all turn back to normal after YUEN is sentenced. SUM mediates between YAN and CHUN and they become friends again……