In Jewish folklore, dybbukim are evil spirits that possess the bodies of living humans and influence their behaviors. Dybbukim are souls that have committed such terrible crimes that they have been turned away from purgatory, or they escaped from purgatory somehow. A dybbuk is particularly drawn to a spiritually weak person who is having similar life struggles as it did when it was alive. Once a dybbuk possesses a body, it will force its host to take part in dangerous activities. A religious rite is necessary for the exorcism of a dybbuk.
Be sure to visit again next week as I continue my month-long spooky theme with another malicious monster.