9 Miles Down (2009)

Trailer: 

Deep in the Sahara Desert, security expert Thomas “Jack” Jackman is sent to investigate a mysterious research facility that has gone completely silent. The facility, buried nine miles below the surface, was conducting an experiment to drill deeper into the Earth’s crust than ever before. Upon arrival, Jack finds the base eerily deserted, with signs of chaos and violence suggesting the team met a horrific fate.

As he searches for answers, Jack encounters Dr. Jennie Christensen, a lone survivor claiming the drilling unleashed something terrifying. Her fragmented explanations hint at demonic forces, hallucinations, and a malevolent presence that defies logic. As Jack struggles to separate truth from paranoia, he begins to experience strange visions himself. The line between reality and illusion blurs as the sinister depths of the drilling operation are revealed.

9 Miles Down masterfully blends psychological horror with supernatural intrigue. The suffocating isolation, haunting atmosphere, and chilling revelations grip viewers as Jack confronts not just the horrors below, but his own tormented past. With each step deeper into the facility, the tension escalates, leading to a shocking finale that leaves you questioning the true nature of evil.