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For 19 year old Jay, fall should be about school, boys and weekends out at the lake. But after a seemingly innocent sexual encounter, she finds herself plagued by strange visions and the inescapable sense that someone, or something, is following her. Jay and her teenage friends must now find a way to escape the horrors that seem to be only a few steps behind in this critically-acclaimed chiller that Bloody Disgusting calls the scariest movie of 2015.