YOUDUNNIT - WHAT A HORRIBLE NIGHT TO HAVE A CURSE
Objective is explained in the book in the storage room (click on it/press T).
Use the mouse or the keyboard keys displayed on-screen to navigate and act.
To linger in the same room, press the corresponding room key or click on the room. Room effects will only start to affect you after you linger.
The game can be fully played with just the keyboard but not with just the mouse; the officer dialog options must be selected with the number keys.