Deffo there is a bug within the game.
1. The premium version windows from the get-go has some kind of portal open, it's not visible in either web or the non-premium version. 2. When girl in the park is killed, game at some point plays dialogues from school, except that you cannot pass a pencil or do anything really as the scene is still showing the park with dead body of girl.
I really liked this wicked game but constantly being stuck by an interface that is missing clicks or moves you between scenes but does not update display, it breaks fun of it.
As it stands I recommend skipping this product.