Synopsis: Kang Pil Sung (Song Sae Byeok) is an excellent detective. He is foul-mouthed but soft-hearted. Meanwhile, Hong Seo Jung (Koh Joon Hee) is a mysterious psychic. To hide her ability, she keeps distance from other people and lives a lonely life. The premise of this drama revolves around a heinous crime that disturbs the natural balance of the world; the crime results in the invocation of the soul of a serial killer that was executed 20 years ago as well as the soul of the detective who catches him. Also known as:빙의 bingeui , Possession Watch drama online for free.