Yu Tian Dong, who suffers from various mental illnesses, falls in love with his psychological counselor, Nan Xing. The ten months they spend together are extremely agonizing for Xing. After leaving Tian Dong in a cruel manner, Xing is always uneasy about whether he will take revenge, but he disappears for two years. Just when she thinks she has completely gotten rid of him, he reappears on her wedding day and kidnaps her husband, Su Mu, to threaten her into a divorce. For Mu's safety, she has no choice but to be in Tian Dong's clutches again. From then on, she has only one goal in life: to get rid of Tian Dong for good, even if it means she has to escape to outer space. When Xing finally comes up with a way to be rid of Tian Dong completely, she realizes that she has become more dependent on him than she thinks...