Na Moon Young is married to Cha Sung Jae, but Cha Sung Jae suddenly disappears. Na Moon Young tries to find her husband and uncover the secret behind his disappearance. Meanwhile, Ha Yeon Joo is neighbors with Na Moon Young. There is also a mysterious man named Do Jin Woo who holds a key to the secret of Cha Sung Jae's disappearance. (Source: AsianWiki)