In the claustrophobic confines of a sprawling, aging mansion, a routine service call descends into a psychological nightmare in the unsettling thriller HVAC. Directed by Jackson McKeehan, the film follows a young technician, played by Cole Doman, who arrives to repair a faulty climate control system for the estate's eccentric and reclusive owner, portrayed by Oliver Dahlgren. What begins as a simple job quickly unravels as the technician discovers the house holds dark secrets, and the malfunctioning vents and ducts seem to whisper with a malevolent life of their own. As the temperature drops and paranoia rises, he finds himself trapped alongside a small, strange staff, including characters played by Jessica Brand and Adam Callahan, each with their own hidden agendas. Blending elements of psychological horror with a creeping sense of dread, HVAC masterfully explores themes of isolation and unseen threats, forcing its characters to confront the chilling truth that the most dangerous systems are not always mechanical.