Mad Detective synopsis
Chan Kwai Bun (Lau Ching Wan) has the power to see people's "inner personalities," making him a very capable, if unorthodox and unstable, police detective. He is invited back to active duty by Ho Ka On (Andy On), a cop investigating the disappearance of a fellow officer whose weapon has been used in multiple robberies. Ho and Ko Chi Wai (Lam Ka-tung), the missing cop's partner, go after an Indian suspect. Bun, however, can see both men's inner selves and suspects something else at play.