This week we head to London as we take a look at Marius Gustavson - a man with a passion for human butchery.

After having his own penis and testicles willingly removed by a sex worker in 2017, Gustavson was inspired to help other men become eunuchs too. He would go on to carry out up to 30 procedures on vulnerable men over the following five years, in what became an international ring of barbarism.

This is possibly one of the grimmest cases we have ever covered, so listener discretion is very much advised.

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Theme music arranged and composed by Holly-Jane Shears - check her work out at www.soundcloud.com/DeadDogInBlackBag

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