Possibly the hardest movie in the House series to find, House III, known in the US as "The Horror Show" stars Lance Henriksen as Lucas McCarthy, a cop who has put away one of (blog post) the worst criminals in history. Sentenced (blog) to death via the electric chair, the baddie ends up coming back around for seconds (blog post) because as it turns out THE GREATEST EVIL OF ALL IS PSEUDOSCIENCE! BWAHAHAHA!
Source: House III Movie Review - Decker Shado