It will be a surprise to no-one that, following the monumental box office success of the first Insidious film in 2011, we now sit here seven years later having reached the fourth installment of this modern horror franchise. As with most other franchises of this ilk (cheap to make and turn over a colossal profit), after several iterations, they lose considerable steam (I’m looking at you, Paranormal Activity). So one would assume that is the case with Insidious: The Last Key, however, that is not so as this series has astonishingly taken a turn for the better courtesy of its unlikely star, Lin Shaye.
Insidious: The Last Key sits comfortably in the timeline between Chapter Three and Chapter One meaning it serves as both a prequel and a sequel. The story explores more of the backstory of Elise (Lin Shaye) as nightmares of her childhood come back