A grief therapist confronts a reality beyond the boundaries of life and death.

Dr. Maya Reeves has built her career on understanding loss, but when her patients begin exhibiting supernatural phenomena, she's forced to confront a terrifying possibility: the dead are not truly gone, and their suffering has opened a door.

Detective Gabriel Torres, haunted by his uncle's inexplicable death, seeks Maya's help with a series of ritualistic murders connected to ancient threshold lore. As Maya investigates, she finds herself drawn into a world she desperately wants to deny, a world where the veil between realities is crumbling.

With the help of an unorthodox archaeologist, Maya and Gabriel race to stop a killer who believes he can tear down the walls between the living and the dead. But the closer Maya gets to the truth, the more her own past threatens to consume her.