Ayu Sutrisna, a novelist, is suffering from a specific phobia that makes her hands shake and cold sweat to break out. Her boyfriend, Anton, suggests a more laid-back atmosphere. So she takes a retreat in an old house owned by Anton’s father. Then two guards of the house die in a horrible way when they try to rape her, seemingly killed by demons. Finally, Anton’s father admits that in the past, his wife gave birth to a baby one Friday night, and was killed.