It's Halloween, and everybody is at a puffy, sweaty party dressed in costumes and biting each other and infecting each other with a terrible secret black-ops rabies virus. So. Pretty much normal Halloween in my experience. Troy has a crisis of coolness, Abed has a crisis of friendship, Jeff has a crisis of not wanting to ruin a $6,000 suit, and Shirley has a crisis of doin' it with Chang.