Three university professors, Peter Winkman (Bill Murray), Raymond Stantz (Dan Aykroyd) and Egon Spengler (Harold Ramis), specialize in ghosts and supernatural things. They decided to leave the campus laboratory and form a "ghost squad". They used the latest scientific instruments to deal with countless ghosts and ghosts that haunted New York City and succeeded. But the government departments regarded them as quacks. Until one day, a group of evil demons surrounded the entire New York City and possessed the beautiful woman Dena (Sigourney Weaver), and everyone finally realized the seriousness of the situation. Can this "ghost squad" save New York and make the devil nowhere to hide? This film won the 57th Academy Awards in 1985, nominated for Best Visual Effects and Best Original Song, and is hailed as one of the most popular and funniest comedies in film history.