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Olivia, Lucas and a group of their college friends travel to Mexico for one last getaway before graduation. While there, a stranger convinces one of the students to play a seemingly harmless game of truth or dare with the others. Once the game starts, it awakens something evil -- a demon which forces the friends to share dark secrets and confront their deepest fears. The rules are simple but wicked -- tell the truth or die, do the dare or die, and if you stop playing, you die. Wikipedia