The next morning, Willow not only has to cope with Veruca having called her a "groupie", but also with Buffy, who seems to be suffering from "Black Frost." That evening when Buffy drinks herself further and further, it is soon revealed why: somebody has a chemical lab set up and is putting more into the beer than just malt. Xander finally sends Buffy home. When her four drinking buddies turn into violent Neanderthals, he finds out that the owner of the pub has been brewing the beer as revenge for 20 years of college kids taunting him. Despite the pub owner explaining that the effects wear off after a day or so, Xander heads off, knowing the damage that could be done in that time. While the boys escape to the streets of Sunnydale, Xander gets Giles to help. They find Buffy drawing cave paintings on her dorm wall saying "Parker bad." Giles and Xander are unable to keep Buffy in her room when she gets a craving for more beer.