The story follows a down-on-their-luck couple who discovers a serial killer's film reels. They decide to take the law into their own hands, risking everything for the chance at a $100,000 reward. ...

The zodiac murders cause the lives of Paul Avery, David Toschi and Robert Graysmith to intersect.

In this true-crime docuseries, a family searching for answers shares clues and eye-opening testimonies about the prime suspect in the Zodiac murders.