Nerdy accountant Harold and his irrepressible friend, Kumar, get stoned watching television and find themselves utterly bewitched by a commercial for White Castle. Convinced there must be one nearby, the two set out on a late-night odyssey that takes them deep into New Jersey. Somehow, the boys manage to run afoul of rednecks, cops and even a car-stealing Neil Patrick Harris before getting anywhere near their beloved sliders.

Confiding in someone, Beth recounts a vivid nightmare that has profoundly affected her. We learn that, unlike other nightmares, this one has a clear grasp on reality and offers insight into what is lurking inside Beth's mind.