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 true identity, was attacked by Dr. Martin Trenneborg, who gave her strawberries laced with the rape drug Rohypnol, as part of his twisted plot in September 2015.
He then took her 560 kilometers from his apartment in Stockholm to a remote farm in southern Sweden, where he planned to keep her as a sex slave.
Speaking in court in 2016, Isabel said 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,” he added.
Now Isabel, who was working as an escort at the time, has spoken out about the whole ordeal in a new documentary.
Isabel Eriksson (pictured), now 39, was attacked by evil Dr Martin Trenneborg, who gave her strawberries laced with the rape drug Rohypnol, as part of his twisted plot.
Martin Trennebourg (pictured), a doctor dubbed ‘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 inside this homemade bunker.
In the Swedish miniseries ‘The Bunker’, which is on the streaming platform ‘Viaplay’, he explains how he suddenly woke up inside a soundproof cell with a cannula in his arm.
‘I was completely panicking. “I felt helpless,” says Isabel, adding that she had no idea if she was in an underground room or on the surface.
Trenneborg, who worked as an independent doctor, is believed to have built the 60 square meter bunker himself starting in 2010.
The concrete walls were 12.5 inches thick and the bunker had a bedroom, a functional bathroom and a fully equipped kitchen.
It even had a small covered patio, where the person who lived there 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”, “have sex two or three times a day, clean and cook”.
“He would arrive around seven-thirty in the morning and then take me to the patio he built.”
She described how he then left her alone in the bunker and returned after work around six.
Trenneborg also drew blood and took vaginal samples from his victim, which he analyzed in a laboratory at his workplace, and later confessed that he did so to make sure she did not have any STDs.
‘He said he wanted to have unprotected sex with me. He gave me some pills, they were contraceptive pills and he told me that he didn’t want me to get pregnant,’ Isabel added.
Trenneborg, now 47, was eventually captured after he panicked following news of Isabel’s disappearance and took her to Stockholm, where they broke into a city police station.
He had told her to give detectives a cover story that she was safe and in no danger, but they became suspicious and when they questioned her alone, she revealed her terrifying experience.
Isabel (pictured) has also since written a book about her experience called ‘You Are Mine’.
Austrian Josef Fritzl (pictured during his trial in 2009) became globally recognized as the notorious serial rapist who held his daughter Elisabeth captive in a basement dungeon.
The doctor drugged the woman with strawberries laced with Rohypnol in her Stockholm apartment and drove almost 350 miles to her home in southern Sweden.
The kitchen of the bunker that the man took five years to build on his rural property
Trenneborg had hired Isabel, who was working as an escort at the time for £2,000 a night, and put her in 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 found guilty of kidnapping and jailed for eight years.
The nature of his crime, along with the underground bunker where he was holding Isabel, earned him the nickname “Josef Fritzl of Scandinavia.”
Austrian Fritzl was jailed in 2009 for rape and murder 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 and saw “a tin roof and a man sitting in a chair next to me, looking at me.”
‘I remember he fed me strawberries. I do remember that. It’s very difficult to talk about it. But after that I fell asleep everything went completely black.
‘I saw a tin roof and a man sitting in a chair next to me and just looking at me. And I saw that I had a needle in my arm that I quickly removed. Then he said that he has kidnapped me and will keep me locked up for a few years.
‘First, when I woke up in the bunker, I tried to attack it to escape. I attacked him with two spikes but he was still sedated so it wasn’t a good try.
‘He said that if I tried again he would chain me to the bed and feed me only crusty bread.
‘I didn’t know if I was above or below ground, it was very cold and dusty. On the stone floor there were bags of cement. “He said that he had built everything himself and that he was proud of what he had done.”
The bunker also has a small covered patio so that the captive person could go outside without being seen by the neighbors.
Police footage taken inside the bunker indicated it was still a work in progress.
Police found traces of flunitrazepam (Rohypnol) in the juice and champagne bottles and in the glass in the woman’s apartment.
Eriksson revealed in a 2017 interview how he woke up to see a “tin ceiling and a man sitting in a chair next to me, looking at me.”
Eriksson spoke about his ordeal and wrote a book after escaping from Trenneborg’s lair.
Eriksson launched an OnlyFans page to overcome her trauma, where users could pay £12 a month to see the former escort in a series of semi-nude photographs of her which she described as “ingenious” and “tasteful”.
In an exclusive interview, Isabel told MailOnline last year: ‘My OnlyFans site is my way of dealing with the trauma I still face even after all these years.
‘I have always been very creative and posing for these photographs, which are clever and tasteful, is my way of dealing with the stress I went through.
“I am not totally naked in any of the photographs, I have underwear on and they are not pornographic at all.
‘They are beautiful and sensual photographs, which reflect my creative artistic passion and which have helped me cope with the severe post-traumatic stress disorder I suffered.
“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 for others, that’s great.”
Speaking about when she met the doctor, she said: “He had seen my advert on the escort site and booked me in for the night, at first he seemed fine and I had worked as an escort for seven years so I know how to look after myself.” .
‘He was very convincing and seemed quite normal, but he was quite the opposite. All the clients I had had before were good and perfectly respectable. Trenneborg was my first and only bad experience.’