A death threat has been placed against Mandom (Ronald Cheng), a world-renowned supermodel, on the eve of the "King of Supermodel" contest. To protect Mandom, the police assign undercover cop Chu (Karena Lam) as his female bodyguard. But to make sure that Mandom can safely compete, however, Chu must participate in the contest herself. Mandom must train Chu to become a super model overnight!