Risang Wisangko, an antiques collector, has passed away, leaving behind a will requesting his residence to be transformed into a museum open to the public. Nina, the owner of a renovation company, assigns Sandra, Hanna, and David to oversee the renovation project. Prof Dirga and his assistant, Mayang, are responsible for managing the antiques displayed in the museum. They discover various heirlooms in the basement of the house, among which Mayang identifies as cursed keris from the past. Sandra unknowingly plays with the keris, leading to an accidental scratch and bleeding. Strangely, the keris absorbs the blood. Tensions rise, and Mayang insists they leave the room. Soon after, strange occurrences unfold, with Sandra falling into a trance and spiraling out of control.