C4's horror cellar documentary
Channel 4 is to reveal the horrors of the Austrian cellar where Elisabeth Fritzl was repeatedly raped by her father Josef in a shock documentary.
The Secrets Of The Austrian Cellar will tell how Josef made his daughter his sex slave for 24 years and fathered her seven children.
It's screened on May 21 and a C4 spokesman said: "It asks how Josef managed to keep his horrific crimes hidden for so long."