After the events that took place fifteen years ago, Burhan lost his son and daughter-in-law with the attack of the demons, and was placed in a mental hospital as responsible for the deaths of his son and daughter-in-law. But; The "creatures of fire" in pursuit of Burhan were not left alone in the mental hospital where he was admitted.

Musallat is a chilling crime movie set in Istanbul and Berlin. It tells the story of a psychopath haunted by an evil spirit, and the dark forces that drive him to commit heinous crimes. As the plot unfolds, love and the presence of a powerful djinn collide in a thrilling and terrifying climax.

When a teacher starts experiencing horrifying nightmares and unexplained events, she discovers that she is being targeted by an ancient curse. As she tries to unravel the mystery behind the curse, she unveils a dark secret that puts her life and the lives of those around her in danger.