High Tension streaming: where to watch online?
Currently you are able to watch "High Tension" streaming on MovieSphere+ Amazon Channel. It is also possible to buy "High Tension" on Amazon Video, Apple TV, Fandango At Home as download or rent it on Amazon Video, Apple TV, Fandango At Home online.
Besides streaming, you can also buy the movie on DVD from Amazon DVD / Blu-ray and on Blu-ray from Zavvi, Amazon DVD / Blu-ray.
You can also stream the title for free on Kanopy, Hoopla, Plex, Plex Player, Plex Channel, Fawesome.