Parasite ( Korean : 기생충 ; Hanja : 寄生蟲 ; RR : Gisaengchung ) is a 2019 South Korean black comedy thriller film directed by Bong Joon-ho , who co-wrote the screenplay with Han Jin-won and co-produced. The film, starring Song Kang-ho , Lee Sun-kyun , Cho Yeo-jeong , Choi Woo-shik , Park So-dam , Jang Hye-jin , Park Myung-hoon and Lee Jung-eun , follows a poor family who scheme to become employed by a wealthy family, infiltrating their household by posing as unrelated, highly qualified people. The script is based on Bong's source material from a play written in 2013. He later adapted it into a 15-page film draft, and Han split it into three different drafts. Bong said he was inspired by the 1960 Korean film The Housemaid and by the Christine and Léa Papin incident in the 1930s. Filming began in May 2018 and finished that September. The project included cinematographer Hong Kyung-pyo , film editor Yang Jin-mo , and composer Jung Jae-il . Darcy Paquet , an A