Ghostbusters Ii (1989)

Peter Venkman, Ray Stantz and Egon work at the University where they delve into the paranormal and fiddle with many unethical experiments on the students. As they are kicked out of the University do they really understand their knowledge of the paranormal and go into business for themselves. Under the new snazzy business name of 'Ghostbusters', and living in the old firehouse building they work out of, they are called to rid New York City of paranormal phenomenon at everyone's whim