Legend of the St. Louis house that inspired the movie The Exorcist, tells of thirteen-year-old boy in ill health who, in the late winter of 1949, traveled to St. Louis from suburban Washington, D.C. Convinced the child was possessed by the Devil, Jesuit priests from Saint Louis University performed a grueling month-long exorcism on the boy, at last freeing the teen from Satan's grasp in the psych ward at Alexian Brothers Hospital.