Trailer
The Monster Upstairs
Watch The Monster Upstairs full movie online Movies123. Watch The Monster Upstairs 123movies online for free. The Monster Upstairs 123movies: No one wants to give their upstairs neighbors and earful at 2 in the morning, but when the little monster upstairs THUMP THUMP THUMPS around like a demon at 2 in the morning, you gotta do what you gotta do. Based (very loosely) on true events.