I bought this while it was on sale at half-price, and I'll admit I only did so BECAUSE it was half-price. However, having played it now I'd definitely say it's worth the full price, and I can see it becoming a new favourite among my gaming circle. It's a very quick to explain, set-up and play game that has enough balance that no one is truly "out" until the game is over.
One player at a time acts as the wolf, while other players are fairytail prey that vary in value. It is up to the wolf to choose which prey to eat, and for the prey to either sleep (gaining points if the wolf doesn't come knocking) or set a trap (saving themselves if the wolf comes, but gaining no points if he doesn't). Each round, the loser (whether trapped wolf or eaten prey) chooses the roles for the next round and that's that!
A little bit of bluffing and a lot of analysis and prediction is involved in this game, and it can get pretty intense when players start to triple/quadruple bluff one another. "Well, he thinks that I think he will set a trap, but does he think I think he thinks I think he'll set a trap?!"
My only criticism is that the 3 player variety gets a bit repetitive and predictable. 4 and 5 player work wonderfully, though. Our group has yet to try the 6 player variety, although I'm confident that one will also work well.
I'd definitely recommend this as a nice, quick and easy game, but one that can get pretty intense with the right group of players!