My Wife's Sister Released 2016-12-20 is a story that falls under the Romance, Family, Drama category. Movie Story "Ji-seon is living with her sister and her husband after a divorce. Her sister Ji-yeong leaves for a work trip and Ji-seon is at home all alone with her brother-in-law. The two can't hide their sexual passion and they cross the line. Every time Ji-yeong leaves, the two enjoy risky sex...".