Rumors claim that moans echo through this hospital after dark, so a reporter goes undercover as a patient. The older man in the next bed warns him that the place is real—and seriously dangerous. He plants hidden cameras throughout the building, and footage from the restroom soon catches nurses having illicit sex. Convinced that the notorious sex hospital truly exists, he continues investigating as one sexual incident after another unfolds around him, until he too becomes caught up in the strange events.