Mustafa, who works at a public institute in Istanbul, is considered to be an unpleasant person who never smiles. He finds himself in an awkward situation when he visits his father at the hospital. He is given his father’s leg and told to bury it to fulfill a religious custom.

Bizum Hoca is a Black Sea native who, despite not completing his education, is self-taught. He learned everything he knows about religious scholarship from his father, Ahmet Fevzi Hoca, an Islamic scholar. After losing his wife Makbule, Bizum Hoca has not let anyone into his life and is a person whom everyone consults for advice. A cheerful and jovial individual, the teacher also focuses on the spirituality of the Islamic faith. He teaches his congregation that being a moral and conscientious person is as important and universal a value as worship. However, there are those in the congregation who do not agree with what Bizum Hoca says.

After graduating from university, İrem returns to her family home in the countryside, unprepared to face dark secrets. This house is home not only to her bedridden mother, her withdrawn father, and her cousins Nida and Esma, with whom she grew up, but also to buried pain and old fears fed by silence. On the night of Irem’s return, the sudden death of her grandmother Mukaddes triggers unexplained oddities in the house. Though the young women attribute their unease to Mukaddes’s death and the haunting of three-lettered beings, the walls of the house whisper of a darker truth.