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Actually they didn't do the charade every day. He's a violent prisoner who beleives they are doing experiments an they are halting his investigation. They allowed the charade to on that, supervised the whole time by chuck aka dr Sheehan, so that if he played out his fantasy he might realise the truth and be cured.

You must either be trolling or not paid attention the second time you watched it. You will see all the evidence and clues the second time round making the film unique in that sense.