Josef Fritzl says he's a 'good person' and gets hundreds of love letters from women

Josef Fritzl says he's a 'good person' and a 'responsible family man', which is kind of like Freddy Krueger saying he's a certified sleep therapist.

The 87-year-old convict is currently serving a life sentence after it was discovered that he had been holding his daughter, Elisabeth, captive for 24 years.

Fritzl kept her locked away in a soundproofed dungeon under his Austrian home while convincing the rest of his family that she had run away and joined a cult.

Over the course of that time, he raped Elisabeth thousands of times, fathering seven children through the incestuous abuse.

One of the children died shortly after birth, while three others were brought out of the dungeon to live with Fritzl and his wife, who were approved as foster parents.

The case shocked the world when it was uncovered in 2008 after Elisabeth's daughter Kerstin was allowed out of the chamber to receive medical attention.

She bravely handed a note written by Elisabeth to medical staff, who notified the police.

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In 2009, Fritzl was sentenced to life behind bars, and he remains locked up in the Stein Prison - Austria's most secure psychiatric jail.

Shockingly, he's now working on a book with the help of lawyer Astrid Wagner, titled Die Abgruende des Josef F. translated as The Abysses of Josef F.

Passages quoted in Austrian and German media see Fritzl make a wide range of claims that show he's still unwilling to take accountability of his crimes.

As well as arguing that he's 'a good person' and a 'responsible family man', he also brags about receiving 'hundreds of letters', mostly from women 'who are in love with me'.

Fritzl also expresses that he doesn't understand why his wife Rosemarie - who didn't know about his crimes - left him.

Other passages printed by local tabloids make the claim that the former electrical engineer fathered a number of illegitimate children around the world, saying he has 'children with several Indian women' and an African son who 'today is a respected lawyer'.

As for his life behind bars, Fritzl describes befriending a sex worker murderer who cooks meals for him in prison.

"But I can't eat too much because I don't want to get fat," he wrote.

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For those who feel angry about such a horrendous human being given the opportunity to write a book about their life, you might find solace in the fact that he doesn't get an easy time from his fellow inmates.

Fritzl explains that he avoids going in the prison yard as 'there are a few prisoners just waiting to be able to beat me up'.

The controversial nature of the book puts into question whether it will ever see the light of day, but we can say for certain that Fritzl definitely won't be seeing the light of day anytime soon.

Despite his attempt to move to a softer prison last year, which would mean he could be up for parole, the court rejected his appeal.