What began as a perfectly normal evening turned into one of the most unsettling experiences of a man’s life — something he would later describe as “straight out of a horror movie.” He had just finished dinner, turned on the television, and was settling in for a quiet night when an unpleasant odor drifted through the air. At first, it was faint, almost easy to ignore — a strange, sour note that didn’t seem to belong. He wrinkled his nose, assuming it might have been something from the kitchen or a garbage bin that needed to be emptied.