Cha Yoo-Ri has been a ghost since she died 5 years ago. She left behind her husband Jo Kang-Hwa and their child. To become a human again, Cha Yoo-Ri carries out a reincarnation project for 49 days. Meanwhile, Jo Kang-Hwa works as a chest surgeon. He was loving, but, after his wife died, his personality changed. After 5 years, his wife Cha Yoo-Ri reappears in front of him.