The movie begins with the brutal murder of a Catholic archbishop in Chicago. The police quickly apprehend a young altar boy named Aaron Stampler, who is accused of the crime. Martin Vail, a renowned defense attorney, takes on Stampler's case, initially thinking it's a slam dunk for the prosecution.
The introduction of "Roy"—the violent, sociopathic persona living within Aaron—shifts the film from a procedural drama into a psychological chess match. It challenges the audience to grapple with (then a frequent, if sensationalized, Hollywood trope) as a legal defense. We are led to root for Vail to "prove" the existence of Roy, framing the victory of the defense as a victory for a victim of trauma. Primal Fear -1996-