In a city where shadows twist with the fog of the unreal, Dr. Madeline Chase, a neuropsychologist with a fractured past, discovers a mysterious new treatment that promises to transport her patients to a parallel world of their own subconscious.
But when one of her patients, a reclusive ex-detective, begins to blur the lines between the natural world and the world they've entered, Madeline is drawn into a web of dangerous obsession.
As she delves deeper into this alternate reality, she uncovers not just forgotten memories but a violent, predatory mind that is using the treatment as a doorway to hunt.
Every step further into this perilous realm, she finds herself stalked by a figure whose intentions are as twisted as her hidden desires.
In a battle for her own sanity, Madeline must confront the haunting question: Is the world she knows real, or has she already entered a world she can never escape?
The boundaries between the mind and reality are fading, and soon, it will be too late to tell whether she is the hunter-or the hunted.