Ghostbusters: Directed by Ivan Reitman. With Bill Murray, Dan Aykroyd, Sigourney Weaver, Harold Ramis. Three parapsychologists forced out of their university funding set up shop as a unique ghost removal service in New York City, attracting frightened yet skeptical customers. After losing their academic posts at a prestigious university, a team of parapsychologists goes into business as proton-pack-toting “ghostbusters” who exterminate ghouls, hobgoblins and supernatural pests of all stripes. An ad campaign pays off when a knockout cellist hires the squad to purge her swanky digs of demons that appear to be living in her refrigerator.