Mad Detective

To and Wai illustrate those ghosts by
having separate actors play them, which means at times, the screen is filled
with 10 or more people, all representing two or three actual characters. Once viewers
figure out what's going on—which takes a scene or two—the gimmick
isn't that hard to follow, but it always looks strange to have, say, a
12-year-old boy, a middle-aged woman, and an old fat guy all yelling back and
forth and pointing weapons at each other across a tight, shadowy room. (The
psychology also seems a little suspect.)

Fleeting confusion and bizarre
literalization aside, though, Mad Detective is an effective mystery story, with an
oddball hero—like TV's Monk, but far crazier—and some moments of
visceral violence that raise the stakes. Mad Detective is short and lean, and has a point to make
about the different reasons why personalities fragment. For Lau, it's a
function of trying to solve crimes and effect justice. For On and everybody
else, it's all about the petty ways they try to cover their asses and save
their jobs: by lying, making excuses, and generally becoming something other
than the best version of themselves.