Jonathan and Julia are a husband and wife who are facing economic problems and business bankruptcy. Jonathan's house was confiscated by the bank, they were forced to move from his house to the Flamboyan Apartment, inherited from Jonathan's late father, Jonathan and his family lived on the 4th floor which was empty and only lived in by Oma Lie, an old grandmother of Chinese descent who was still Jonathan's relative. Laura, Jonathan's eldest daughter, feels something strange since living on the 4th floor. Something strange also happens to Citra, Laura's sister. Citra often has a strange attitude, she often throws tantrums and wants to harm Laura. On the 4th floor many residents died horribly. Laura continues to experience mysterious terrors that threaten the lives of her family.

Oma Spinoza is a shaman who specializes in Gypsy black magic combined with ancient magic from Yemen. With all her efforts, this old grandmother defeated her enemies and her family's enemies using the deadly magic of kalakembar. Until Sonny, who was desperate, asked Grandma Spinoza for help. Sonny, assisted by Grandma, managed to harm Herman, who is Mas Ngabehi Akadikoen's grandson-in-law. Herman is Sonny's rival at medical school, his intelligence threatens Sonny's existence at medical school. Luckily Herman was handled by Grandfather Marnu at the right time, so that death did not come to him.