What started as an ordinary, unremarkable evening turned into one of the most unsettling and unforgettable experiences of this man’s life. He came home from work, his mind still buzzing with the day’s tasks, and absentmindedly dropped his keys onto the counter with the habitual jingle. Almost immediately, a strange, pungent odor reached his nose. It wasn’t the usual mustiness of old pipes, and it wasn’t the faint aroma of something forgotten in the kitchen fridge. No, this smell was heavier, sour, and carried a distinctly rotten edge that seemed to cling to the air itself, refusing to dissipate.