Lin Xin kept having the same dream, and the feeling of suffocation in the dream still existed even in real life. Once a mysterious man handed Lin Xin a poster, and a castle appeared on the poster, yes! This is the castle of her dreams! Surprised, her face changed drastically. Her boyfriend Yi Ziran noticed it and asked her why, and Lin Xin told her boyfriend. Yi Ziran encouraged her to go once and accompanied her to solve the nightmare that had been haunting her! But in fact, Yi Ziran was an exorcist who had not yet opened his eyes. He knew that this kind of poster did not appear accidentally. It was to summon Lin Xin to that castle. If he did not go, the summons would probably be even more powerful, and he would not be able to live a normal life at all. When they set out, they met another mysterious man, Mo Yehan, who seemed to be able to peek into Lin Xin's heart. Although he said that he was the same, Yi Ziran still remained wary of him.
When they entered the castle, they found many people in the castle. They seemed to be visiting the castle, but they were not. There was so much mystery in this castle that the three of them formed a team and started heading towards Lin Xin's dream. However, how should they face all kinds of strange events along the way? Is Yi Ziran's suspicion of Mo Yehan correct?