The Possessor

When Peter - an archeology student - opens Haggia's cursed medallion, her spirit immediately takes control of him. Peter's girlfriend Sherry, his sister and mother soon fall prey to Haggia. And when Peter undergoes the hideous sexual transformation into Haggia, his family has but one recourse: Brother Erasmo - The Exorcist. Before long, there ensues a frenzied battle between good and evil!