I was a prisoner of the Swedish Josef Fritzl… he drugged and kidnapped me then kept me in a bunker – his chilling words made me think I’d never see the light of day again
A woman who was kidnapped, drugged and locked in a bunker for six days by a man named Josef Fritzl from Sweden feared she would never see the light of day again.
Isabel Eriksson, an alias used to protect her real identity, was targeted by Dr. Martin Trenneborg, who gave her strawberries laced with the date rape drug Rohypnol as part of his twisted plot in September 2015.
He then drove her 350 miles from her flat in Stockholm to a remote farm in southern Sweden, where he planned to keep her as a sex slave.
Isabel said in court in 2016 that Trenneborg chillingly told her that the door was built like a “bank vault” and that she would “never be able to open it.”
‘Then he asked me if I had any wishes, if he should expand the bunker, […] because I will live here for many years to come,” she added.
Now Isabel, who worked as an escort at the time, has spoken out about the whole terrifying ordeal in a new documentary.
Isabel Eriksson (pictured), now 39, was targeted by evil doctor Martin Trenneborg, who gave her strawberries laced with the date rape drug Rohypnol as part of his twisted plot
Martin Trennebourg (pictured), a doctor dubbed the ‘Swedish Fritzl’, was sentenced to eight years in prison for kidnapping Isabel and locking her in a bunker
Trenneborg’s house near Kristianstad in southern Sweden, where he locked Eriksson in a soundproof cell in this homemade bunker
In the Swedish miniseries ‘The Bunker’, shown on the streaming platform ‘Viaplay’, she explains how she suddenly woke up in a soundproof cell with a cannula in her arm.
‘I was completely panicked. I felt powerless,” Isabel says, adding that she had no idea whether she was in an underground room or above ground.
Trenneborg, who worked as a freelance doctor, is said to have built the 60 square meter bunker himself from 2010.
The concrete reinforced walls were 30 cm thick and the bunker had a bedroom, a functioning toilet and a fully equipped kitchen.
It even had a small, covered courtyard, where the resident could go outside without being seen by the neighbors.
Speaking in court in 2016, Isabel revealed that Trenneborg made it clear that his intention was to keep her locked up ‘as a girlfriend’, to ‘have sex two or three times a day, clean and cook’.
“He came in around 7:30 in the morning and took me to the courtyard he had built.”
She described how he then left her alone in the bunker and returned after work around six o’clock.
Trenneborg also drew blood and took vaginal samples from his victim, which he tested in a laboratory at his workplace, later confessing that he did this to ensure she did not have STDs.
‘He said he wanted to have unprotected sex with me. “I got some pills from him, they were birth control pills and he told me he didn’t want me to get pregnant,” Isabel added.
Trenneborg, now 47, was eventually captured after he panicked over news reports of Isabel’s disappearance and drove her to Stockholm, where they walked into a city police station.
He had told her to give the detectives a cover that she was safe and in no danger, but they became suspicious and when they questioned her alone, she revealed her terrifying ordeal.
Isabel (pictured) has also since written a book about her experiences called ‘You Are Mine’
Austrian Josef Fritzl (pictured at his 2009 trial) was recognized worldwide as the infamous serial rapist who held his daughter Elisabeth captive in a basement dungeon
The doctor drugged the woman with strawberries spiked with Rohypnol at her flat in Stockholm and drove almost 350 miles to his home in southern Sweden.
The kitchen in the bunker, which the man had built for five years on his rural estate
Trenneborg had hired Isabel, who was working as a £2,000-a-night escort at the time, and bundled her into his car after meeting her in Stockholm.
Although he was initially charged with rape, the trial ruled that there was insufficient evidence to confirm that he had sexually assaulted her, and he was convicted of kidnapping and sentenced to eight years in prison.
The nature of his crime, coupled with the underground bunker where he held Isabel, earned him the nickname “Josef Fritzl of Scandinavia.”
Austrian Fritzl was jailed for rape and murder in 2009 after keeping his own daughter, Elizabeth, locked in a cellar beneath his house for 24 years.
Isabel revealed in a 2017 interview how she woke up to see a “tin roof and a man sitting next to me on a chair just looking at me.”
“I remember him feeding me strawberries. I do remember that. It’s very difficult to talk about it. But then I fell asleep, everything was completely black.
‘I saw a tin roof and a man sitting next to me on a chair and just looking at me. And I saw that I had a needle in my arm which I hastily pulled out. Then he said that he has kidnapped me and will have me locked up for a few years.
‘First when I woke up in the bunker, I tried to attack him to escape. I attacked him with two nails, but I was still stunned, so it wasn’t a good attempt.
‘He said if I tried again he would tie me up in bed and feed me nothing but crispbread.
‘I didn’t know if I was above or underground, it was very cold and dusty. Cement bags lay on the stone floor. He said he built everything himself and was proud of what he had done.”
The bunker also has a small covered courtyard, so that the captured person could go outside without being seen by the neighbors
Police footage taken inside the bunker indicates it is still a work in progress
Police found traces of flunitrazepam – Rohypnol – on the juice and champagne bottles and glass in the woman’s flat
Eriksson revealed in a 2017 interview how she woke up to see a “tin roof and a man sitting next to me on a chair just looking at me.”
Eriksson spoke about the ordeal and wrote a book after escaping the Trenneborg lair
Eriksson then launched an OnlyFans page to cope with her trauma – where users could pay £12 a month to see the former escort in a series of semi-naked photos of her which she described as ‘artful’ and ‘tasteful’.
In an exclusive interview, Isabel told MailOnline last year: ‘My OnlyFans site is my way of dealing with the trauma I’m still dealing with after all these years.
‘I have always been very creative and posing for these artsy and tasteful photos is my way of coping with the stress I have been going through.
‘None of the photos show me completely naked, I have my underwear on and they are absolutely not pornographic.
‘They are beautiful, sensual photographs that reflect my creative artistic passion and have helped me cope with the severe PTSD I was holding on to.
“We should be proud of our bodies, and we are all a work of art, and we are all beautiful and if you want to manifest that for yourself and others, then that’s great.”
Speaking about meeting the doctor, she said: ‘He had seen the advert on my escort page and booked me for the night, he seemed fine at first and I had done seven years of escort work so I know how to look after myself to assure .
‘He was very convincing and seemed normal enough, but he was the complete opposite. Every client I’d had before had been fine and completely respectable – Trenneborg was my first and only bad experience.’