In Hector Umbra, Oesterle skilfully employs the stylistic devices of the detective novel and science fiction. He also enriches his abstruse and mysterious adventure by taking critical sideswipes at the widespread dissemination of conspiracy theories, the sensationalism of the media and the fashion fixation of club culture. The focal point of his stories is Hector Umbra, a painter, who goes in search of his friend DJ Osaka, who has suddenly disappeared. Readers will be entranced by this wild and colourful world packed with freaks, villains and aliens.