An oddity that caused unrest at an Islamic boarding school occurred since one of the female students returned. What's really going on?

Lena and her brother, Benhur, moved from Jakarta to Malang for college and stayed in a cozy boarding house owned by Mrs. Astri and Mr. Wiryo. Every week, all tenants gathered for a communal dinner. However, the peace turned into terror when a tenant had a strange dream and claimed the house was haunted, even seeing a hanging pocong. At first, no one believed it—until Lena saw it herself. This was no ordinary boarding house. The price to stay wasn’t money, but lives.