The Final Patient (2005)

Retired doctor Daniel Green (Bill Cobbs) astonishes two medical students when he single-handedly lifts a 5-ton tractor off a trapped boy, igniting their curiosity about his extraordinary strength. Intrigued, they visit his secluded farmhouse and uncover his shocking secret: he possesses the key to eternal youth. However, their fascination soon turns to horror as they realize that the pursuit of immortality carries dark repercussions. As the night unfolds, the students learn that Dr. Green's miraculous gift comes with a terrifying cost, leading them to confront a fate more dreadful than aging itself.