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New details emerge about “Swedish Fritzl”

'Masked doctor' Martin Trenneborg prepares to stand trial as new terrifying details of alleged crimes come to light.

Martin Trenneborg is the Swedish doctor accused of drugging a woman with Rohypnol-laced strawberries and imprisoning her in a sound-proof bunker on his rural property.

Trenneborg, 38, is due to stand trial in Stockholm next week charged with kidnapping and raping a 38-year-old woman, who allegedly spent a week trapped in isolation in Kristianstad, in the Swedish country’s south, late last year.

In the lead up to the trial new details have emerged about the doctor who claims to be a member of Mensa – an organisation reserved only for those who score in the 2 per cent of the general population in the IQ test.

“He is a head man. He does not speak about feelings and tries to solve everything intellectually,” an anonymous friend of the accused told the Swedish daily newspaper, Kristianstadsbladet.

On his Facebook Trenneborg claimed his favourite film stars are Christopher Walken, Arnold Schwarzenegger and Italian porn star Rocco Siffredi, German newspaper Bild reported.

But away from his good doctor persona Swedish police allege the man had a deeply depraved private fantasy that he almost made a reality.

Prosecutor Peter Claeson said that Dr Trenneborg would have spent several years building the 60 square metre light-proof and sound-proof prison-like bunker where he allegedly kept the woman hostage, reports Swedish newspaper Aftonbladet.

The prosecution alleges that the woman was victim of a meticulously well-planned kidnapping plot – a place she was supposed to spend years as a sex slave after meeting up with Trenneborg at her flat in September last year for a second date, when he feed her the spiked strawberries.

Trenneborg is accused of buying a wheelchair and masks to disguise himself and his victim as elderly as they drove the 550 kilometres to the bunker.

Masks were reportedly found by police in search of Dr Trenneborg’s home. Photo: Swedish Police Authority

According to CNN the woman spent most of her captivity handcuffed and repeatedly raped.

The whole kidnapping plot is believed to have come undone when the doctor drove back to the woman’s home in Stockholm to collect some of her possessions and panicking when he discovered a note on her door reading, “We miss you,” and finding out she had been reported missing.

Trenneborg brought the woman to Stockholm where they visited a police station together on September 18 and tried to convince authorities they were an actual couple and that she wasn’t missing.

But officers were suspicious and took the woman to one side and it is then they were told of her alleged ordeal.

“We believe his intention has been to keep the woman locked up for several years,” chief prosecutor Peter Claeson said in a statement.

“We also suspect him of planning this for years. Among other things, he has built the bunker to bring one or more victims.”

Friends of the doctor appear to be blindsided by the accusations.

“In the beginning, when this got out, you kind of thought that, ‘maybe it’s not so serious, maybe it’s blown out of proportion’, but now that he’s been charged it’s become clear how f–king sick this is. It’s like a film,” a “close friend” of the doctor told newspaper Kristianstadsbladet.

Bunker space where the kidnapped woman was allegedly held. Photo: Swedish Police Authority

Trenneborg is believed to have confessed to drugging the woman and taking her to his home but denied raping her.

“He is a man who was mentally depressed and, when at the police station, complied with all the requests of the police,” Mari Schaub, Trenneborg’s barrister told CNN.

“He is very much in regret of what he has done.”

The doctor’s alleged crimes have been compared to those of Josef Fritzl, the Austrian man who kept his own daughter locked up in a cellar underneath his home for 24 years.

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