Demon Tongue (2016)
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Synopsis: Four paranormal research students are sent to an abandoned complex to conduct an investigation into strange occurrences that the locals feel are the results of demonic possessions. These amateur ghost hunters get much more than they bargained for when the power goes out, they hear unearthly noises and discover demons lurking in a hidden basement deep beneath the cold, stone structure that now becomes their prison.
More info: IMDB