Pluto follows the Europol robot detective Gesicht (German for face) in his attempts to solve the case of a string of robot and human deaths. The case becomes more puzzling when evidence suggests a robot is responsible for the murders, the first one in eight years. The series recently ended after its 65th chapter.
Numerous references to other characters in Osamu Tezuka's Star System appear, such as Black Jack, Robita, as well as several Astro Boy characters who appear in chief supporting roles.
