What kind of movie is it when a mother-in-law locks her daughter-in-law in the house and lets her youngest son have sex with her?

Where's Sister-in-law Going

is a drama film directed by Coyote and starring Yang Jue, Li Na and Xie Xia. The movie tells the story of Zhiwei, who returns home from working in Beijing and suddenly falls in love with his sister-in-law. Plot Summary Zhiwei, who returns home from working in Beijing, returns home and suddenly falls in love with his sister-in-law