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It is common for older feature films to be distributed online in "short" or compressed formats with double extensions (like .mkv.mp4). The original Raaz is a landmark in Indian horror cinema. Raaz Short Film.mkv.mp4
A couple, Sanjana and Aditya (played by Bipasha Basu and Dino Morea), travel to Ooty to save their failing marriage. They discover their house is haunted by a vengeful spirit (Malini) who was once Aditya's lover. Double extensions are sometimes used by unofficial hosting