The story starts with small-time conman Cool (Nicholas Tse), whose undercover policeman half-brother (Phillip Ng) is murdered by Ko (Gao Hu), the head of an illegal gambling syndicate. Cool seeks the help of "Magic Hands" Ken (Chow Yun Fat), a legendary gambler turned casino security consultant, to battle Ko. Written by IvanWong

Popular pastry chef (Chi-lam) meets a nurse (Annie) and falls in love with her. Soon he realizes that she is an overly sensitive girlfriend who is also suspicious, jealous, controlling and slightly violent. She checks up on him 24-7 and screens his computer, phone, blogs and Facebook contents and messages. Desperate to get rid of his crazy love, he decides to start an investigation into her past to find out the secret behind her crazy behavior...