Quartile rating: 6.5/10 · 1 rating
Tensions rise within an asbestos cleaning crew as they work in an abandoned mental hospital with a horrific past that seems to be coming back.
Session 9 is a slow-burn horror that leans heavily on atmosphere and location — the derelict Danvers State Hospital is used to extraordinary effect, with Brad Anderson's cinematography turning the decaying corridors into something genuinely unsettling. The plot is serviceable but uneven, relying on familiar psychological horror tropes (multiple personality disorder, workplace tension building to violence) without fully delivering on their promise. The acting is competent but inconsistent across the ensemble. The ending attempts a twist that is more ambiguous than satisfying, and while the film's overall mood is distinctive, its execution doesn't quite match its premise's potential.