Rawipreeya is an angel who lives in the sky. She wants to know about human life, but doesn't want to leave her astral body. So she decides to possess the body of Parita, who can see Rawipreeya's spirit. Parita is usually a weak and naive girl, but she became strong and clever after Rawipreeya possessed her body. Pathorn, Parita's college professor, is interested in ghosts and spirits. In an attempt to prove the existence of supernatural forces, he is ready for anything. And Rawipreeya, who does not fear this topic at all, starts to help him. But when Pathorn finds an ancient ring that belongs to an evil spirit named Thipchai, the people surrounding him begin to mysteriously die.
Thipchai was a princess in the end of Ayutthaya who died during the war. Pathorn is the reincarnation of her lover. When the connection between Rawipreeya and Parita is weakened, Thipchai possesses Parita's body so she can be with Pathorn.
