“Today, we die.” Four young women have gathered at a guesthouse to commit group suicide. Equipped with strong rope, a playlist, and apathy for life, Yeon and her friends seem to have a foolproof plan. Yet when they finally meet Death, Death rejects them and takes away their right to self-extermination. They may regain that right under one condition: they must retrieve someone who escaped Death at the same guesthouse years ago. The thing is, that person now lives in a prison.