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The Prison (2017)
An imprisoned ex-police inspector discovers that the entire penitentiary is controlled by an inmate running a crime syndicate and becomes part of the crime empire.
Actor: Han Seok-kyu Jeon Bae-soo Jo Jae-yoon Jung Woong-in Kang Shin-il Kim Rae-won Kim Sung-kyun Lee Kyung-young Park Won-sang Shin Sung-rok
Director: Na Hyun
Country: South Korea