Two undercover cops are forced to be a team to find a serial killer. Chow is straight-laced and Lau has ESP. The victims were all childhood friends. The killer is a ghost!
SanEat
A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."