'Steeltown Murders' is a fictionalised reconstruction of a true story about the eventual identification of a serial killer years after an initially fruitless investigation. It suggests that solving the crime required that the police had access to both new technologies (namely the use of DNA profiling) and a new mindset. It's a tale solidly told, although one feels that the writers have had to work quite hard to create the idea that the shadow of the past lies heavy on the latter-day investigators; without this conceit, there might not be much dramatic tension in the story, given that the prime suspect is by this point dead.