When paranormal investigator Ryan Matthews is called to the abandoned Daybridge Poor House-known locally as Mercy Hall-he uncovers far more than typical ghostly phenomena. Accompanied by skeptical assistant Jojo Lang and reluctant medium Jason Reeves, Ryan discovers a hidden government laboratory where classified experiments tore the dimensional fabric decades ago, allowing an ancient entity to slip through and use the building's traumatic history to grow stronger.

As team members experience vivid hallucinations and missing time, Ryan realizes they're becoming part of a consciousness network the entity is building to fully cross into our reality. With the entity using human minds as anchors and Ryan's unique sensitivity making him the perfect final connection, he must confront the darkest corners of Mercy Hall and his own past to understand why he was drawn to this investigation-and to close the dimensional breach before the forgotten voices of Mercy Hall herald something far more terrifying.