A doctor must journey into her own nightmares to confront a demonic night hag.

The enigmatic Dr. Helen Magnus and the Sanctuary team are back on their quest to study and protect the strange and terrifying creatures that secretly populate our world.

The enigmatic Dr. Helen Magnus and her team are on a mission to protect and study strange creatures that are secretly living among us. Along with their newest recruit, forensic psychiatrist Will Zimmerman, the group must face their darkest fears and their worst nightmares in order to provide a safe haven for the monsters that lurk in the shadows.

Dr. Zoe Hart's life was going according to plan: she was on her way to becoming a heart surgeon just like her father. But when she's told that she didn't have the bedside manner needed for an important fellowship, she's devastated. If she wants to get the fellowship next year, she must become a general practitioner. So, the New Yorker takes a chance on an offer from an admirer--in the deep south.