Bahalol tells the story of an autistic young man in his 40s named Bilal who lives with his mother Rokiah. His mother tried to best prepare him facing the outside world in case she passed away.

Sara Fitria, haunted by nightmares of a Kuntilanak, travels to the cursed village of Wonoenggal to uncover her past. There, with her friend Azizah and young doctor Majid, she confronts supernatural terror and dark secrets to free the village from its curse.