Heroically protecting the witness, a series of dangerous and hilarious scenes unfold... Wu Ah Qiu (Ng Yiu-han) and Bee Duofen (Sham Kin-fun) are ordered to protect an important witness, Luo Meimei (Lo Mei-wei), but Meimei is a rebellious person by nature and doesn't like being closely protected. She sneaks away, attracting a pursuit crisis. Qiu mistakenly thinks that he has a terminal illness, and becomes very desperate, fighting the killer to the death...