Author Lo Wai-ming wrote crime novels for a newspaper, but his stories became true crimes. Lo decided to catch the killer himself and met Chan Chuan, a former newspaper worker, who he hired as a cleaner. However, this mishap nearly puts his wife, Li Cheung, and his daughter, Lily, in danger. After the killer strikes again, Lo realized that Chan Chuan was the real culprit, who took justice into her own hand and killed people based on his novels. Chan Chuan imprisoned Lo, wanting to keep him for herself and also threatened to kill Cheung and Lily. Lo struggled to protect his family and find a way to escape and alert the police.
