Ghoul is a supernatural horror series set in a dystopian future where prisoners are interrogated in a remote military facility. The story follows Nida Rahim, a newly recruited military interrogator who discovers that the prisoner she is interrogating is not human, but a ghoul - a demonic entity that can possess the bodies of the dead. As Nida delves deeper into the mystery of the ghoul, she uncovers a sinister conspiracy that threatens to unleash chaos and destruction on the world.