 There is a supposed "Poltergeist Curse" surrounding the three films  in the series. Actress Dominique Dunne (qv) was murdered by her  boyfriend after finishing the first film. Actor Julian Beck (qv)  died of stomach cancer after shooting the second film. Actress  Heather ORourke (qv) died of a mystery case of intestinal  stenosis shortly before completion of the third film. Also, many  cast members careers have suffered after appearing in the films.