Hideo Nakata's pandemic-set little mystery thriller begins solidly enough, but later devolves into a childish slasher. That's too bad knowing that Nakata is behind the camera.

With a compact runtime of 45 minutes, this could have been a tight ride in the vein of American screenlife films like Searching or Host. But while it does manage to set up a reasonably involving mystery, it falls apart in the last 15 minutes. That's still a fairly big chunk of the film, mind you. Silly twists are introduced left and right, and it has big logical gaps that are hard to overlook.

So, overall, this was a missed opportunity. Too bad.