A good entry, the vibe works as well. It feels quite a lot like Werewolf. I encountered a few bugs though; when the player offers to help, it seems you can accidentally click other buttons while that dialogue is up, so you can end up observing someone, not see the results of the observation and lose time with it as well. As mentioned by other people, the movement is a bit slow, but I also found the camera rotation felt a bit weird as well. Normally you would track the mouse's position on the screen and use that to rotate the character for first person movement.
All in all, a lot accomplished in a short time. Nice work!