Get ready for the scariest two and a half minutes of your life. This horror short film is everything a good movie should be. Short, sweet and scary as hell.

The video, titled "Lights Out," was part of the Who's There Film Challenge, which hands out awards for the best horror short film and is run by the British website BloodyCuts.

Now the video is not for the faint of heart and while it is only two and a half minutes long, it's sure to keep you up all night.

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