Teenagers in the small Pennsylvania town of Hemlock Grove are being murdered by a strange beast. The townsfolk believe it is a werewolf. To them, this makes the prime suspects the local gypsies, and Peter Rumancek in particular. He steadfastly denies that he is the murderer but he harbours a dark secret...he is a werewolf.
Mediocre. Had some potential to be a edgy supernatural thriller, Stranger Things or True Blood-like (the fact that Alexander Skarsgard's brother, Bill, has a leading role in Hemlock Grove helps the True Blood comparison). The murders provide for intrigue but this is substantially diluted by the fact that very little happens in the way of solving the mystery for the first 10 episodes. During that time the series is really just a teen soap-opera, with very limited character engagement.
Things do kick up several notches in the final three episodes of Season 1, making the Season worthwhile in the end. With a bit more closure on that season it would have been a decent mini-series.
After Season 1 there was nothing new to do, except invent other nasties to terrorise the town, and that's what happens. Add in more soap-opera like sub-plots and it's pretty boring stuff.
I lasted until Episode 4 of Season 2 before giving up.