The Judge from Hell, is based on a supernatural twist in the world of legal justice. It tells the story of judge Bitna, who was known for leniency, possessing a demon sent to Earth on a mission to bring ten criminals back to hell. Publicly, everyone condemned Bitna for being lenient. No one knew behind those sentences lay a darker purpose: a demon was trying to retrieve the souls of people who committed grave sins.
Things escalate dramatically when she starts developing feelings for Daon, a detective surrounding much of the same work. The romance complicates her mission as she is torn between completing the demon's task and human emotions. The tension builds as she must decide whether to carry out her orders from the demon or yield to her feelings for Daon; this raises questions on issues of justice and morality as well as on questions that have to do with how supernatural forces influence human decisions.