When a teenage boy stumbles out of an abandoned river house covered in blood, Detective Brynn Keller is called to a scene the town would rather ignore. Inside the house, a dead man sits upright in a chair, carefully placed, facing the water, as if returned rather than killed.
The boy remembers nothing, except the breathing in the dark.
As Keller and her partner uncover more bodies staged along the river’s edge, a disturbing pattern begins to emerge. Hidden corridors beneath old houses. Symbols carved into wood and earth. A ritual that ties victims not just to the river, but to its history.
For Brynn, the case becomes personal. Fifteen years earlier, her sister vanished along this same stretch of water. Now the symbols she once dismissed as childhood obsessions are resurfacing, deliberate and precise. Someone has been waiting for her to come back.
As the investigation deepens, Brynn is forced to confront a possibility she never allowed herself to consider, that her sister may not be a victim at all, but part of something older, organized, and still active beneath the river towns.
The River Below is a slow-burn thriller about memory, ritual, and the quiet violence of places that protect their secrets. It explores how communities collude with silence, how trauma reshapes truth, and how some patterns are designed to repeat, no matter how deeply they’re buried.