Theeeeeeere's a bad moon on the rise.
Or, for those that like misheard lyrics, "Theeeeeeeeere's the bathroom on the right."
I wouldn't go out tonight... instead, you can stay in and play the new adventure for the Iron Kingdoms RPG from Privateer Press. The adventure's titled Bad Moon Rising. And in a world where werewolves are not-all-too-uncommon, I'd say that if something called the "bad moon" where anywhere near around, going out is bound to take your life.
Bad Moon Rising is a full adventure scenario designed for four or five characters with 10-20xp. While it's created to be played over 5 sessions, each one incorporating a day and a night in the game, you can obviously adjust that as you see fit for your gaming group.