When Mike Mignola created Hellboy, he unleashed a visionary comic book character and launched an entire universe populated by unique heroes, misfits and monsters. Featuring in-depth interviews with Mignola alongside appearances from the likes of Patton Oswalt, Guillermo del Toro, Neil Gaiman, Rebecca Sugar and Victor LaValle, this documentary is for fans of the Hellboy universe and the Hellboy movies, but more than that, it's a film for anyone interested in creativity and the imagination.