Forget your dreams, what if your nightmares came true? Ariadne has been plagued by bad dreams for weeks - the unwilling star of her own nocturnal horror films. The nightmares all feature the same imposing Shadow Man, a faceless yet inexplicably grinning creature who relentlessly chases Ariadne across the horrendous landscape of her dreams. The sequence is merciless and identical each time - the breathless pursuit, the inevitable capture, the sadistic slaughter. And all the while, she senses that grin… But now things have changed. She used to wake up covered in sweat, now she wakes up covered in blood. The nightmares have begun leaching into reality, leaving Ariadne bruised and bleeding, and sure of only one thing – nowhere is safe. Sleep deprived and desperate, she begins to doubt her own mind. Is there really a demonic creature intent on her destruction, or is she suffering from some undiagnosed psychosomatic disorder? Either way she is in a deadly race against time, because the next time she falls asleep, the Shadow Man might not let her wake up again... How do you fight a monster that may not even exist?