Soul's Code plot
The naked body of a murdered university student is found with a strange mark on her forehead. This sign is said to have been applied to prevent the vengeance of her ghost. The case is placed in the expert hands of Detective Khan of the DSI. The dead girl is taken to Doctor Nicha of the CIFS in Bangkok to find more tracks and discover the identity. Meanwhile, C., a former boyfriend of the girl, gets involved in the case when he starts looking for his ex-girlfriend. However, when her ghost tries to contact the living, Detective Khan truly begins to believe that there is something supernatural at play that will lead him to the solution of the case.