When Det. Chris Loudon re-opens the cold case murder of a 16-year-old from 1976, DNA leads him to a suspect who photographed naked young women and was suspected of rape. When he finds a box of the photos, Loudon wonders if these were his victims.

Loudon continues his investigation into serial killer Bruce Lindahl. Using photos Lindahl had taken of the young women, Loudon identifies more possible victims. And he uncovers the shocking fact that the police suspected Lindahl but let him go free.

Det. Chris Loudon discovers serial killer Bruce Lindahl had a powerful ally and uncovers suspicious behavior by the police in the '70s. To prove Lindahl's guilt once and for all, Loudon visits Lindahl's grave and oversees the exhumation of his body.