▁United ▁States . ▁ ▁Plot ▁In ▁ 1 9 7 4 ▁a ▁student ▁att ends ▁the ▁class ▁of ▁Oxford ▁University ▁Professor ▁Cou pl and , ▁who ▁wishes ▁to ▁prove ▁that ▁the ▁super natural ▁does ▁not ▁exist . ▁Cou pl and ▁shows ▁a ▁video ▁of ▁a ▁possessed ▁boy ▁and ▁explains ▁that ▁research ▁will ▁be ▁done ▁to ▁find ▁a ▁c ure ▁for ▁this ▁kind ▁of ▁dis order . ▁One ▁of ▁his ▁students , ▁Brian ▁Mc Ne il , ▁is ▁invited ▁to ▁film ▁the ▁experiment ▁process ▁and ▁joins ▁Cou pl and , ▁his ▁two ▁assist ants ▁Kr iss i ▁and ▁Harry , ▁and ▁their ▁subject ▁Jane ▁Har per , ▁a ▁young ▁woman ▁who ▁generates ▁strange ▁phen omena ▁and ▁has ▁been ▁abandoned . ▁Jane ▁is ▁generally ▁kept ▁locked ▁in ▁a ▁room ▁with ▁loud ▁rock ▁music ▁playing ▁during ▁the ▁day time ▁to ▁prevent ▁her ▁from ▁sleep ing ▁in ▁the ▁hopes ▁that ▁the ▁regime ▁of ▁sleep ▁dep riv ation ▁will ▁result ▁in ▁increased ▁activity . ▁ ▁Once ▁his ▁fund ing ▁is ▁taken ▁away ▁by ▁an ▁ex as per ated ▁College ▁Board ▁that ▁is ▁both ▁anno yed ▁about ▁the ▁dist urban ces ▁he ▁makes ▁and ▁his ▁lack ▁of ▁results , ▁Cou pl and ▁and ▁his ▁assist ants ▁sett le ▁in ▁an ▁isolated ▁house ▁in ▁the ▁coun tr ys ide ▁to ▁keep ▁experiment ing ▁on ▁Jane . ▁Her ▁negative ▁energy ▁takes ▁the ▁form ▁of ▁" E vey ", ▁an ▁infant ▁doll - like ▁creature ▁only ▁Jane ▁sees . ▁Cou pl and ▁instruct s ▁Jane ▁to ▁transfer ▁her ▁negative ▁energy ▁into ▁a