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...
Lee Chae-dam
Ji-seon (지선)
Kim Soo-ho
Director of the headquarters (본부장)
Min Do-yoon
Hyeon-soo (현수)
Kim Ji-yeon
