Desc: Đại Nội Mật Thám: Directed by Stephen Chow, Vincent Kok. With Stephen Chow, Carina Lau, Carman Lee, Tat-Ming Cheung. An imperial agent gets ridiculed for his various inventions, until his supportive wife encourages him to attend a conference, which's actually a trap to kill all the doctors serving the emperor, where his crazy inventions come in handy.