Bezobidnaya okkultnaya igra starsheklassnikov po prizyvu mstitelnogo duha oborachivaetsya koshmarom: na sleduyuschiy den ih obidchikov nahodyat mertvymi. I eto tolko nachalo? Tem vremenem zhizn yunoy Yerim letit pod otkos: ochnuvshis posle pohischeniya, ona obnaruzhivaet sebya v parallelnom Seule - v mire prizrakov, gde net teney, a na nebe siyayut dve luny. Ego obitateli - dushi, zastryavshie mezhdu mirami. Poka molodaya shamanka Namgun Byol rassleduet tsep zagadochnyh samoubiystv v mire zhivyh, Yerim dolzhna nauchitsya vyzhivat v mire mertvyh i nayti svyaz mezhdu ee pohischeniem i duhom, vyzvannym shkolnikami.