My Wife's Sister 5

Young-chan and Mi-sook decide to send their son to study abroad, and Mi-sook leaves together. The executioner Mi-yeong, who was Yeong-chan's former lover, tries to seduce Young-chan after her divorce, but Yeong-chan is not shaken. After some time, Yeong-chan is lost because of his wife, Mi-sook, who has an affair with her son's teacher abroad, and Mi-young comforts her wife, Yeong-chan, and crosses a line that should not be crossed...