This game was the very first winner of the XYZZY for best NPCs. Your roommate John is studying, and four of his buddies come over. You have to eliminate them one or two at a time, and quiet down your environment, until John can study.
The PCs are well-written and entertaining. The puzzles are early-90's standard: a series of events that seem logical afterwards, but which ignore many alternative solutions (for instance, you can't (Spoiler - click to show)tape the wrapper or the towel across the hole in the window).
Good for fans of busy, interactive rooms of NPCs.