The Open House proves that you can't just take any concept, holiday or scenario and turn it into a horror movie. You need to lay the foundation first (and know what story you want to tell) before you explore the dark side of it.
Movies don't always have to spell everything out, but here it's far too vague and therefore fails to encourage any sort of emotional connection towards its characters or add intrigue.
With a multitude of successful hits across television and film, Netflix misses a beat with their latest film The Open House. With a convoluted story and underutilized characters and elements of storytelling, this film falls flat before it even begins.
...could have shaken things up with a tighter script and better execution, but instead, it winds up being both tired and tedious, two sins no horror movie can survive.