Noah Janzen is plagued by nightmares and numerous sleep disorders; night terrors, sleepwalking, sleep talking, and a horrifying sleep paralysis that often invokes chilling images of the Shadow People and the Hat Man.Determined to prevent his nocturnal demons from interfering with his successful career and newly formed relationship with Angela Rosewood, he meets her in a local pub. But when he sees a shadowy figure wearing a fedora and a trench coat eerily watching him through a window, he freaks out and flees.He soon learns that a hat-wearing psycho has viciously attacked Angela, smashing in her door, trashing her apartment, and nearly killing her. Worse still, Angela suspects Noah has morphed into a conduit for evil and starts distancing herself from him.Desperate to save his new relationship and find answers, Noah seeks the aid of physicist and sleep specialist, Doctor Neil Samuelson. While remaining tight-lipped on his experiments involving the Shadow People and the Hat Man, the enigmatic doctor informs Noah that an old woman has been brutally murdered at the hands of The Dark Menace.As blood-curdling reports of Shadow People and the Hat Man escalate, Noah suspects Neil has accidentally opened up a portal to another dimension, unleashing a torrent of ghostly evil entities, hell-bent on terrorizing and destroying humanity.He's thrust into an epic battle and must find answers to a strange and mysterious real-life phenomenon that has haunted and terrorized thousands of people around the world for centuries.