Continuity mistake: When Gordon is remembering the day he went home and his wife spilled the hot water on him, it shows Gordon in the van watching his wife and daughter walk into the house. They disappear around the corner, but in the next shot of the house his wife and daughter are walking into the house again.
Session 9 (2001)
Ending / spoiler
Directed by: Brad Anderson
Starring: Josh Lucas, David Caruso, Paul Guilfoyle, Stephen Gevedon
When Gordon first showed up at the deserted asylum he was possessed by "Simon" who's voice we hear on the end of the tape. It made him kill his wife and baby at the end of the first day. He has been living at the hospital since then. It then makes him slaughter his entire team prior this he dispatches the last worker who shows up as a replacement for one of his unknowingly earlier victims, before "Simon" deserts him. Gordon realizing what he's just been made too do suffers a complete mental breakdown and is left alone in "Simon" is old room talking to his broken mobile as dusk sets outside and the recording of "Simon" states that "He" lives in the weak and wounded.
nick-a-tron
More mistakes in Session 9
Henry: What are you... doing... here?
Trivia: A massive subplot was removed from the film. It was going to be shown throughout the film that a crazy homeless woman was secretly living in the hospital. She'd eerily observe the workers and be a red herring to throw off the audience. SPOILERS. Finally, after she witnesses Gordon kill everyone, she would sneak up and kill him as "revenge." However, her subplot was removed as audiences were confused (thinking she was Mary from the audio tapes) and the director wanted to streamline the plot.