An Austrian first-time director on Sunday defended his chilling Cannes entry about the relationship between a paedophile and his prey which shocked audiences and sharply divided critics.

The plot of Michael, one of 20 contenders for the festival’s top prize, has strong parallels to the story of Natascha Kampusch, the Austrian girl kept locked in a cellar for more than eight years by a child molester.

Film-maker Markus Schleinzer presents drab officer worker Michael, who keeps 10-year-old Wolfgang prisoner in a soundproofed cell behind a bolted door in his own basement, not as a monster but as a mild-mannered everyman.

“I wasn’t interested in a witch hunt,” said Mr Schleinzer, 40, best known as a casting director on films by his compatriot Michael Haneke including the 2009 Palme d’Or winner The White Ribbon.

“I wanted someone who seemed pretty average, where one could say, ‘I know someone like that’. You find paedophilia, like all kinds of crime and violence, in every social stratum,” he said.

The film’s casts a cold, clinical and riveted gaze on the perpetrator and observes the familiar routine that he and his young prisoner share.

Michael arrives at work each morning, performing well enough in his insurance job to earn a promotion, and even goes off on a ski holiday with friends, leaving Wolfgang in his custom-built prison with some instant soup.

The sexual abuse is mercifully shielded from view but the sight of a leering Michael reclining on Wolfgang’s twin bed and calling the boy to him was enough to make viewers’ blood run cold.

Wolfgang, an intelligent child who does not believe Michael’s claim that his parents have abandoned him to his life in the dungeon, flinches every time his captor touches him.

But they also share relaxed moments together – preparing dinner, doing jigsaw puzzles and decorating the Christmas tree. That down-time reveals a sentimental, even child-like side to Michael.

“Depicting criminals as monsters is in my opinion about protecting yourself and the desire to distance yourself from them,” Mr Schleinzer said. “If you make him a monster, what is he? A mythical creature? But he is not human.”

Mr Schleinzer said the Kampusch case was only one impetus for the story, noting that thousands of children vanish every year.

“Of course these issues are enormously frightening,” he said. “But to suppress them for that reason and not talk about them does not minimise the danger.”

Sign up to our free newsletters

Get the best updates straight to your inbox:
Please select at least one mailing list.

You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.