Memoir of a Murderer is a 2017 South Korean action thriller film directed by Won Shin-yun. It is based on a bestselling novel by Kim Young-ha. The film stars Sol Kyung-gu and Kim Nam-gil in the lead roles, with Kim Seol-hyun and Oh Dal-su in the supporting roles. Filming began in late 2015. The film released in South Korean theatres on 6 September 2017.

Sol Kyung-gu is a South Korean actor. Sol studied Theater and Film at Hanyang University. Upon his graduation in 1994, he appeared in numerous theatrical productions, such as the hit Korean adaptation of the German rock musical Subway Line 1, and productions of Sam Shepard's True West and A. R. Gurney's Love Letters.