Who's Afraid of the Big Bad Ghost

During a routine ghostbust in the city, the Ghostbusters take down a bunch of ghosts at a restaurant, where a young couple is talking about getting rid of a ghost in their own mansion. The man, named John, suggests that they hire the guys for the job, but the woman, Olivia, refuses. Winston gives John one of their business cards before they go. At the mansion, the pair try to scare the ghost of Uncle Horace away, John loses the card that Winston gave him, and Horace himself uses it to call the Ghostbusters to scare away the other two ghosts so that he can find what he lost. However, during all this, another ghost (that escaped from the restaurant the guys were busting) and causes trouble in the mansion. When the Ghostbusters arrive, they mistakenly try to bust Horace, who is unaware of the fact that he has now become a ghost. After convining the guys not to bust him, Egon's PKE meter detects the other ghost, and the guys go after him, only to find that it has taken Olivia hostage. Egon uses a Tarzan-like move to rescue Olivia as the Ghostbusters trap the rogue spook. Horace, now reunited with Olivia, finally remembers that it was his niece he was searching for. Finally able to say good-bye, Horace passes on peacefully, and both John and Olivia thank the Ghostbusters for their help.