Jeff and Preston are a pair of friends who run a micro-brewery out of their garage. After accidentally running over a black cat while making deliveries, they go to the owner's home with the best of intentions. Unfortunately, the cat belonged to a coven of witches who don't take kindly to the boys' peace offering of beer. Their freshly brewed batch of Slacker Lager is now cursed and all who drink it suffer a horribly gruesome and ironically funny death.