Odessa Hardwicke's life is derailed when she is forced to turn her gun on her partner, a decorated FBI agent who suddenly turns inexplicably violent. The shooting, justified by self-defense, shakes the young FBI agent to her core, but what most troubles Odessa isn't the tragedy itself but the shadowy presence she thought she saw fleeing the deceased agent's body. Soon she is on the trail of a mysterious figure named John Silence, a mystery man who may be involved.