Plainclothes policemen Brian and Mike use an elderly woman's apartment for surveillance, hoping to catch a fugitive gangster. They develop a warm relationship with their hostess, whom they call "granny." Meanwhile, each man develops a romantic relationship: Brian with a strange wandering teenage girl, and Mike with a pregnant woman at the dry cleaning shop. When the gangster returns to his flat, Brian and Mike are forced into an explosive confrontation.
- Genre: Crime, Action, Thriller
- Studio: Mei Ah Films Production, Brilliant Idea Group
- Keyword: undercover cop, surveillance, triads
- Cast: Francis Ng Chun-Yu, Louis Koo, Michelle Saram, Stephanie Lam Mei-Jing, Helena Law Lan, Wayne Lai Yiu-Cheung