I've got the key, I've got the secret... ...and neither of them are worth watching. When I saw the 'last' in the title I inwardly started hoping that meant the studio powers that be had decided this, the fourth installment in the lamentable Insidious franchise, would close out the saga of pointless, unoriginal, uninspiring horror movies. Having browsed over to BoxOfficeMojo however, and looked at Last Key's $167.9 worldwide cume, an improvement somewhat over its predecessor, I'm sure we haven't seen the back of them just yet. It isn't like Last Key is the worst of the series either, from what I can remember of it Chapter 3 holds that dubious honour. The switch of focus, pioneered in the last title, to Lin Shaye and her compatriots ('She's psychic. And we're sidekicks.') isn't unwelcome either, bringing with them both empathy and comic relief. Sadly, the other side has nothing to offer these potentially intriguing characters but boredom and Wittertainement-coined quiet-quiet-bang moments, accompanied by poor monster design. The switching between time periods, and over arching mythology weighs down rather than enhances the set-up, and moments toward the end of the movie to tie this back into the larger franchise are unneccessary and add extra minutes. It's the second time Darth Maul popped up where he wasn't wanted in cinema last year. I had planned to follow this with the director's next effort, Escape Room, instead I took the time to contemplate why bad films like this need to exist, in order to allow us to contrast great things against them. So, Last Key I thankyou, for allowing me to enjoy Hereditary more.