Good movie with a GREAT acting job once again by Andy Griffith. Somewhat revisiting his dark side from A Face In The Crowd decades earlier, Andy plays good Gramps/bad Gramps perfectly. A reconnecting Grampa with murderous intent. It would be a shame if viewers couldn't enjoy this portrayal due to wanting him to always be Andy Taylor or Matlock. John Ritter is good as usual too, but Ange steals this movie outright! With a little more production work this could've worked in theaters. If looking for it on DVD, I think it's listed under another name, "Relative Fear". Incidentally, another more recent departure for him is a movie called "Play The Game". There's quite a bit of sexual content, but very cute with a clever ending.
Review of Gramps
