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Currently you are able to watch "Killer Retreat" streaming on Amazon Prime Video, FlixFling or for free with ads on The Roku Channel, VUDU Free, Tubi TV, Cineverse, DistroTV, Amazon Prime Video with Ads. It is also possible to rent "Killer Retreat" on Amazon Video, Apple TV, Google Play Movies, YouTube, FlixFling online and to download it on Amazon Video, Apple TV, Google Play Movies, YouTube.
Seven people leave London for a therapeutic weekend in the Cotswolds where they are told it will 'change their life'. It does, but not in the way they imagine.