Up until now I thought the whole Insidious franchise was lukewarm at best, but now I see I was mistaking: it's far worse than that. This film was a sinking ship that the most talented elements of the first two (Patrick Wilson, Rose Byrne and director James Wan) abandoned before being washed up. Following the money grab of Insidious 3, The Last Key is an unnatural disaster with no coherent storyline, an over-reliance on poor jump scares and so many WTFs that it should be viewed as a comedy.

Look, I don't usually rate scary movies highly, especially these ones. I know the movie itself has plot holes, at times horrible dialogue, and cheesy resolutions, but the premise behind this movie had a lot of potential. This is the reason for my rating. I kept constantly thinking how different the execution would have been if they had a competent director. To put it simply: Idea: A Execution: D+

Much better than the third instalment, did a good job of giving Elise a back story. Worth a watch.