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When wedding band keyboardist Emily discovers an old karaoke machine in the back of a dive bar, she thinks it will lead to a fun-filled night of singing and bonding with her band mates. Unfortunately, this karaoke machine seems to have a thirst for blood. When the singing begins, so does the bloodshed. When an excellent performance allows someone to be spared by the machine, the crew think they’ve figured out how to finally beat it. Proven almost immediately wrong, it takes more horrifying deaths and a visit from a mysterious stranger to realize they may have a chance at survival after all.