In the midst of the preparations for Jimmy's annual Halloween party, the station's staff is hit with a big surprise. Because of their previous unwillingness to actively participate, no one except Matthew has been invited this year. Upset with the slight, they turn to Dave for help. And though Dave isn't interested, Lisa guarantees Jimmy that the staff will be at the party in costume if invited. Meanwhile, the psychic hired for the party tells Bill exactly when he's going to die. When Lisa runs into trouble, she announces that Dave is going to wear an outrageous costume and gets everyone to change their minds about the party. Although Dave still has reservations about the idea, it's enough to convince Jimmy to invite everyone back. While finding getting in isn't going to be quite as easy as she thought, Lisa notices that Dave is wearing one of her dresses as his costume and is upset that he looks better in it than she does. But when he offers to change, she insists that it will only make things even worse. Knowing that he's going to die in another 35 years has Bill depressed about his future. In response to his own immortality, he arrives at the party with his elderly date, Dorothy. When he persists in thanking the psychic for her insights, Bill is told that she made a mistake and that he's destined to live much longer than originally thought. However, when the news causes him to dump his elderly date, Bill discovers too late that beneath Dorothy's costume is a young and attractive woman. Finally, Jimmy uses Dave and Lisa's eager-to-please attitude to get his party guests dancing.