Nalgae Entertainment

‘Soo-ah’ spends hellish days everyday due to dating violence of her live-in boyfriend, ‘Hyun-woo’. ‘Anuat’, a man full of mystery, stays by the side of her. Soo-ah goes on a trip to an island with her only friends ‘Yoon-mi’ and Hyun-woo to celebrate her 25th birthday. On the night of the full moon, Anuat follows the footsteps of Soo-ah and encounters evil spirits surrounding her.

Driven by their own motives, a writer, a creditor, and a detective arrive at an isolated cabin. Unnatural events begin to plague the house, and the writer descends into madness, claiming that it's the only place where her writing truly comes alive. As tensions rise, the others realize the cabin is no ordinary place, and a dead body is discovered along with the shadow of an evil spirit. While the writer and creditor struggle to escape, the detective uncovers the truth behind the haunting.