Cinnas tells the story of İlkin and her friends, who go to a house that has been taken over by demons. İlkin, who has been having dreams that he cannot understand for days, wants to go to the old house where his father and grandfather disappeared due to the effect of dreams. Although his mother opposes İlkin's request, he does not listen to anyone and goes home with his friends. When they get home, everything seems normal at first, but soon, some strange things happen. After the terrible events, İlkin and his friends learn that the house has been taken over by demonic spirits and jinn. The night they spend at home turns into a nightmare for İlkin and her friends.