A woman who was drugged and held captive in a bunker by a man dubbed ‘Sweden’s Josef Fritzl’ said she managed to survive after he made one crucial mistake.
Isabel Eriksson, who is now 39 and uses an alias, revealed the harrowing ordeal she suffered when Dr Martin Trenneborg kidnapped her and held her captive in a dark bunker at a remote farm about 350 miles from her Stockholm home. He plotted to keep her as a sex slave in a soundproof bunker after they went on a second date with one another.
Vile Trenneborg drugged Isabel with drug-laced strawberries in order to knock her out. Her ordeal is depicted in the new Amazon series The Bunker. Isabel recalled the moment she regained consciousness, stating: “I’m dazed. My mouth is dry, and I slowly open my eyes. I look straight up at the ceiling. It smells bad.
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Isabel managed to survived her ordeal with Trenneborg
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“I don’t know what day it is or what time of day. I realise I don’t know where I am.” Isabel said she found herself lying under a blanket while wearing a pair of jeans as well as her pink jumper.
She added her body ached and that she could not feel any underwear under her jeans. Isabel tried to attack Tenneborg in a bid to escape but he chillingly told her not to try again. Isabel added: “He said that if I try again he would fix me up in chains in bed and feed me only crispbread. I was completely panicked. I felt powerless.”
When he returned with a sandwich, Trenneborg said he would paint the walls of the bunker in a colour she liked better. Trenneborg sadistically made clear he wanted to keep Isabel locked up to “have sex two or three times a day” with as well as to cook and clean for him. Isabel had been working as an escort at the time of her kidnap in September 2015.
Trenneborg kept Isabel at a remote farm hundreds of miles away from Stockholm
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He went on to take blood samples from her, later claiming to have done so to see whether she had any STIs. On the fifth day of her captivity, Trenneborg returned with a gun and gave it to her, telling her to shoot him in order to get her freedom. She recalled: “I’m freaking out. My hands just shake, even if it’s my way out, I don’t dare. I cry. I give him back the gun.”
But on the sixth day of being held prisoner, she managed to persuade him that she needed clothes from her flat, which he agreed to. They drove back to Stockholm but were unable to gain access to her flat as police had been alerted that she was missing and changed the locks.,
Trenneborg then took her to a police station in the city pretending she had been with a friend. But Isabel revealed the truth when she was left alone with a police officer during an interrogation. Monster Trenneborg was later found guilty of kidnapping in 2016 but he was acquitted of rape and was ordered to serve 10 years behind bars. Isabel previously told The Metro: “Who knew that a person could have so much darkness in them?”
Trenneborg was sentenced to 10 years behind bars
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The case is similar to that of incest pervert Josef Fritzl who was caged for like in 2009 after he kept his own daughter, Elisabeth, as a sex slave for 24 years, from the age of 18 to 42. Fritzl started to sexually abuse his daughter in 1977 when she was 11 and kept her imprisoned in a cellar at the family home.
She gave birth to seven of Fritzl’s children, with three of them kept in captivity with her while one died days after birth and the other three were taken upstairs to be raised in the house. Fritzl incinerated the body of the baby who died and was later charged with negligent homicide for failing to get medical help for the child.
In 2008, Elisabeth’s daughter Kirsten, then 19, became seriously ill. Fritzl took her to hospital and police issued an appeal for Elisabeth to come forward. In the following week, Fritzl released Elisabeth from the cellar and police were made aware of her reappearance. She was questioned by police and told them she had been held captive for more than two decades.
Fritzl was jailed for life in 2009 after being convicted of rape, incest, enslavement and negligent homicide. In January 2024 a court ruled that Fritzl, who had developed dementia, could be moved from a psychiatric unit to a regular prison as he posed less of a danger.