Grid (2022 - …)

"Geurideu" is a South Korean sci-fi thriller series that takes place in the late 90s. A mysterious invisible entity saved humanity from a catastrophe and then disappeared just as mysteriously as it appeared. After 24 years, it reappears and helps a serial killer who has killed several people and managed to escape punishment. A hunt for the ghost begins, involving not only the police but also representatives of special services.