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The Witness (Korean: 목격자; Hanja: 目擊者; RR: Mok-gyeok-ja) is a 2018 South Korean crime thriller film directed by Jo Kyu-jang. It stars Lee Sung-min, Kim Sang-ho, Jin Kyung and Kwak Si-yang. It was released theatrically in South Korea on August 15, 2018. The film is about a man who witnesses a murder and takes no action on what he has seen.