In 1971, a mass murder spree took place in Coldwater, Indiana. The incident became infamously known as "The Slaughterhouse Murders." Senior Detective John Donovan was able to apprehend the three killers, who were all executed by electrocution. In 2014, Ted Granger , a farmer who recently lost his grandson to heart failure, resurrects the deceased killers to wreck havoc on the people who have wronged him over the years. Standing in the way of the murderers is Detective Michael Rives, who races against the clock to discover the origin of the killers, their motives, and what their next move will be.