The big thief Mackey (Simon Yam) stole the Star of Mara and was arrested by detectives Lui Kei (Leung Ka Fai) and Leung Sing-por (Chung Chun-to). The Star of Mara was missing, so Mackey framed Black Rose (Ip Yuk-hing) for the crime. Mackey escaped from prison one night and went to find his old love Chan Po-chu (Carina Lau) to retrieve the key to the Star of Mara. The police also ordered detectives Lui Kei and Leung Sing-por to capture Mackey and retrieve the Star of Mara. In order to capture Mackey, the two came up with their own plans. At the same time, Black Rose, in order to clear her name, also entangled Lui Kei...