The Handmaiden is a 2016 South Korean psychological thriller film directed by Park Chan-wook. Set in 1930s Korea during the Japanese occupation, the film follows a young woman named Sook-hee who is hired as a handmaiden to a Japanese heiress, Lady Hide
From Wikipedia
The Handmaiden is a 2016 South Korean erotic historical psychological thriller film directed, co-written and co-produced by Park Chan-Wook and starring Kim Min-hee, Kim Tae-ri, Ha Jung-woo and Cho Jin-woong. It is inspired by the 2002 novel Fingersmith by Welsh writer Sarah Waters, with the setting changed from Victorian era Britain to Korea under Japanese rule, where a Korean girl is hired as a handmaiden to a Japanese heiress who lives a secluded life on a countryside estate.