Enemies

Most of Andy Phillips games have the same bones with different overlays. In all of the games, you play a protagonist with some sort of special features (in this one, you're an intelligent accountant), a femme fatale, and cinematic scenes with really hard combinatorial puzzles.

The special features of this one are the setting (most of it in an abandoned boarding school), and the gruesomeness of it. It was a bit over the top, even compared to his other games.

If you haven't tried any of the other games, I really liked Heist and Time.