Parapsychologists create a business exterminating ghouls and hobgoblins -- and end up facing one killer demon in a cellist's apartment. Bill Murray, Sigourney Weaver, William Atherton, Rick Moranis, Annie Potts, Ernie Hudson, Dan Aykroyd, Harold Ramis, David Margulies, Ivan Reitman Added on Amazon Prime 2023-03-25. Added on HBO 2022-12-05. Youtube Trailer