Egon Spengler Venkman hadn't stopped him. Due to the large amount of collateral damage the city of New York suffered from the battle with Gozer, the Ghostbusters were sued by nearly every county and city agency in New York. Additionally a judicial restraining order was enacted which barred the Ghostbusters from performing services as paranormal investigators and eliminators, effectively putting them out of business. Five years after the events of the first film Egon was working at the Institute for Advanced Theoretical Research and was conducting experiments on human emotions. A negative test involved keeping a couple with marriage problems locked in
Egon Spengler of Spengler's genius, tries to make him come back to Ohio (where Spengler grew up) to work at his uncle's lab, but fortunately, after his uncle accidentally releases the Stay Puft Marshmallow Man from the containment unit, he realizes that ghosts are real and accepts Spengler's work. Throughout the series, Spengler would have his soul switched with that of a demon, have his molecular structure destabilized to the point that it stranded him in the Netherworld (requiring him to be rescued by the others), experience a curse-induced age regression that nearly destroyed him, turn into a were-chicken, and have his