An Anti-Escape game, eh?
Certainly felt like a fresh approach, despite the dated graphics.
The music was sufficiently haunting to add to the atmosphere.
My main gripe was the shortness and lack of a retry button. While personally I think from a design perspective, having to retrace your actions is a way to lower the difficulty and help the player beat the game, it still felt like a bit of a cop-out not to have a retry or safe function, though with the game's shortness it can be forgiven. If you make the game longer it becomes a valid point though.
Apart from that, I liked the difficulty and that none of the riddles were out there. On my first try I actually overlooked the red herring that can mess up your potion, so maybe make it a bit more obvious from its coloration. Regarding the potion, I felt you could have had another riddle by making the order of the ingredients fixed, so there would be one more way to miss a few percent and there would be a difference between someone simply trying out all combinations (or missing the root like in my case) and lucking out.
Additional ways to solve things in alternative ways, for instance meeting a hunter outside and giving him the rifle to shoot your wolf form if you make it out later could be another way. Maybe make you work to actually create a silver bullet from a hidden pendant to make that more effective instead of just a few percent hindrance.
You could add a clock in sight, forcing you to stay on your toes and think quick. While it's a step back from the casual exploration point and click adventures do normally, I feel the added sense of urgency and pressure would benefit the athmosphere and it's not like you couldn`t make that time mode optional to cater to all sides.
This is a good game and I'd love to see you expand on it. Adding another fullmoon night in another house or alternative solutions would be great. Maybe a real story (premise was awesome, but some more involvement and some more added thoughts would increase immersion) that sees you kill yourself or even pass your curse to someone else to get rid of it as a bad ending or a best solution that leads you to salvation.
Whatever makes this longer would be fine. But you're definitely on to something here, it felt special. Congrats on a good start and thanks for all the work you put into it, especially on the riddles feeling natural.