Awakening the Zodiac (2017)

"The deadliest serial killer in U.S. history... is back"

Plot Summary

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. It isn't long until they find themselves in the killer's lethal cross-hairs.