After his young son suddenly disappears without a trace, a grieving widower is forced to seek help from the one person he has spent years keeping at a distance: his retired detective father. The older man once played a key role in capturing a notorious serial killer, and now new evidence suggests that the same terrifying criminal may be connected to his grandson’s disappearance. As father and son reluctantly work together, they uncover disturbing clues that lead them into a dangerous search where old secrets, painful memories, and a deadly threat begin to surface.