Dark Nuns

When a young boy named Hee-joon becomes possessed by a powerful evil spirit, the people around him struggle to find a medical cure. Sister Yunia, a nun who believes the boy's condition is spiritual, decides to perform a dangerous, forbidden exorcism ritual despite the Church's strict orders against it. She is joined by Sister Mikaela, who finds herself drawn to Yunia's unwavering resolve. As the two nuns face the demonic entity known as one of the 12 Manifestations, they must contend with both the rising darkness and a skeptical psychiatrist, Father Paul, who insists on a medical solution. Together, they risk their souls to save a life.