The story takes place in Spain during the summer of 1944, five years after the Spanish Civil War, during the early Francoist period. The narrative intertwines this real world with a mythical world centered on an overgrown, abandoned labyrinth and a mysterious faun creature, with whom the main character, Ofelia, interacts. Ofelia's stepfather, the Falangist Captain Vidal, hunts the Spanish Maquis who fight against the Francoist regime in the region, while Ofelia's pregnant mother Carmen grows increasingly ill. Ofelia meets several strange and magical creatures who become central to her story, leading her through the trials of the old labyrinth garden. The film employs make-up, animatronics, and CGI effects to bring life to its creatures.