I was held in bunker by ‘Sweden’s Fritzl’ who drugged me with laced strawberries…his words convinced me I’d NEVER escape
A WOMAN who was drugged, kidnapped and held hostage in a bunker by a man described as Sweden's Josef Fritzl has spoken out about the horrific ordeal.
Isabel Eriksson, now 39, was snatched by Dr Martin Trenneborg who used drug-laced strawberries to knock her out before trapping her in a fortified bunker at his remote farm.
He drover her some 350 miles from her flat in Stockholm to his home in the middle of nowhere - intending to keep her as a sex slave in a fortified soundproof bunker.
Speaking in court in 2016 she said that Trenneborg, then 39, told her he had a bunker built like a "bank vault" which she would never be able to escape.
"Then he asked me if I had any wishes, whether he should expand the bunker, [...] because I will be living here for many years," Isabel added.
During an early investigation police found a disturbing "sex slave contract" on Trenneborg's computer.
READ MORE WORLD NEWS
It stated that the woman would offer intercourse and oral sex, be photographed and filmed and be made to write letters to her relatives.
If she completed other more extreme acts, a year would be removed from her time in the bunker, reports, and if she tried to escape, more would be added.
Isabel - whose name has been changed to protect her - was working as an escort at the time of the kidnapping in September 2015.
In a new documentary she opens up about the six-day ordeal at Trenneborg's home near Kristianstad in southern Sweden.
Miniseries The Bunker Woman describes how she woke up inside the soundproof cell with a cannula in her arm.
"I remember that he fed me strawberries. That I do remember. It is very hard to talk about. But after that I fell asleep everything was completely black.
"I saw a tin roof and a man sitting on a chair next to me and just looking at me. And I saw that I had a needle in my arm which I hurriedly pulled off.
";Then he said that he has kidnapped me and will have me locked up for a few years.
At one point he entered the bunker wearing one of the masks, leading Isabel to think she might be rescued before realising it was him.
Trenneborg was found guilty of kidnapping but acquitted of rape in 2016 and sentenced to 10 years in prison.
Grim pictures from the case show his remote farm and the inside of the dingy bunker where he kept Isabel.
Trenneborg reportedly kept her tied up in shackles, only allowing her to shower once.
Josef Fritzl, 89, was jailed for life in 2009 after keeping his daughter Elisabeth as a sex slave for 24 years.
He began sexually abusing his daughter in 1977 when she was just 11 years old, keeping her trapped in a high-security cellar inside the family home.
Over the years of horrific sexual abuse and rape Elisabeth gave birth to seven children.
In 2008 she was able to tell police in Austria about what her father had been doing after Fritzl allowed her out to visit her daughter Kerstin in hospital.
Trenneborg too built a bunker to hold Isabel - beginning the 60sqm construction in 2010.
He used concrete-enforced walls which were 12.5 inches thick, adding a bedroom, toilet and kitchen as Fritzl had done.
He also added a courtyard which was covered so neighbours wouldn't be able to see his prisoner if she went outside.
Isabel said: "He would come in at around half past seven in the morning, and then he would take me out in the courtyard he built".
She told how Trenneborg would leave her alone during the day and come into the bunker at around six.
He took blood and vaginal samples from her which he tested at a lab at work - confessing to cops that he did this to ensure she didn't have any STDs.
Isabel explained: "He said that he wanted to have unprotected sex with me. I got some pills from him, it was birth control pills and he told me that he did not want me to get pregnant."
Some six days after kidnapping Isabel, Trenneborg took her to a police station in central Stockholm.
He said they had tried to get into her flat, but because she had been reported missing, police had changed the locks.
Despite assurances that everything was fine, cops drew her to one side and pressed her for the truth.
She told how they had met at her apartment a week earlier where he had drugged and raped her before taking her to his farm.