Behind the hustle and bustle of the bustling city lies an unknown and mysterious world. The protagonist is named Lin Yu. He has a dual identity. During the day, he is a benevolent doctor who saves lives and heals the wounded. He wears a white coat and shuttles busy in the hospital, bringing hope and health to patients with his superb medical skills. At night, he transforms into a mysterious ghost-catching master, wearing a black robe and holding a magic weapon. He shuttles between the yin and yang worlds and engages in thrilling and desperate battles with evil ghosts.
