A group of college students decide to explore a mountain rock drainage sewer, disturbing the vengeful spirit of a woman whose body was unearthed from behind the tunnel wall-now known as the 'Rope Woman'-reawakening her deadly curse.

A group of college students venture into the cursed rock drainage sewer at Mt. Shinmoedake National Park, eager for excitement. However, their playful exploration quickly becomes a desperate fight for survival when they disturb the vengeful spirit of a woman whose body was unearthed from behind the tunnel wall-now known as the 'Rope Woman'-reawakening her deadly curse.