Cha Cha Chan

Teddy (Eric Tsang) is a ladies man. He is constantly with a woman, but never accepts the responsibility that comes with a relationship. Short of cash, his friend Wendy (Jo Koo) comes up with a plan for him to impart his knowledge in hitching up women to desperate men who will pay for some tips.

Pu Pu is dumped by her boyfriend whom she loves. Before she moves out, she asks to listen to "their song" just one more time, that is the hidden track by Jay Chou. Then she leaves him and goes to her sister's place in Hong Kong. All the while she is there, she searches for the same song, the "hidden track", and from this it leads her onto a journey of discovering love and a new beginning. Despite the whole movie revolving around Jay Chou's song, Jay Chou plays only a cameo part.

Super model Mandom (Ronald Cheng) is very famous in the field. One day, he is threatened by someone, asking him not to attend a model competition. Mandom calls for police and Madam Cheung (Karena Lam) is sent to bodyguard him 24 hours a day. However they have hostile feeling to each other. At the same time, Mandom also faces a challenger Fantasy (Sammy). How can Mandom fight against Fantasy in the model competition?