When Jimmy Marcus's daughter is found murdered, his childhood friend Sean Devine is assigned the case. His personal life unraveling, the investigation takes Sean back into a world of violence and pain he thought he'd left behind. It also leads him on a collision course with Jimmy Marcus -- a man with his own dark past eager to solve the crime with brutal justice. And then there is Dave Boyle, a man who hides monstrous secrets beneath a bland facade -- secrets his wife, Celeste, is only beginning to suspect.
As the race for a killer heats up, all are pulled closer toward an abyss that will force them to face their true selves -- and will mark them as irrevocably as the past itself.