Oh Dan-Byul lost her parents due to her own mistake. She marries Joon-Young, but her husband passes away. Meanwhile, her mother-in-law, Ho-Duk, divorces because of her husband's infidelity and her sister-in-law, Se-Sil, returns to South Korea after divorcing her Italian husband. Now, these three women live together while overcoming their own personal problems and becoming important to each other.

Witch's Castle ran for 1 season. No new episodes are scheduled.