"I just wanted some erotic role-play, not to be dominated," said the 49-year-old undertaker.
He told a district court in Cologne that the dominatrix he hired did not let him go after the agreed-upon two hours, and held a kitchen knife to his throat while he was tied up on the bed, reported the Kölner Stadt Anzeiger.
"She wanted my debit card and the PIN," the man said.
He claimed she became aggressive after using cocaine and forced him to swallow some as well, before calling a friend, who allegedly withdrew €980 with his card.
The man travelled from a psychiatric institute to give his testimony and was accompanied by a psychiatrist.
“My clients pay me to hurt them,” the dominatrix told the court.
She said he paid her €400 for the first two hours, but then he wanted her to stay longer, and told her to bring over a transsexual. She said she got his debit card and PIN to make sure she was paid.
"I do this so often, I've had bad experiences," said the mother of four.
The court ruled that because both were found to have large amounts of cocaine in their blood, it was possible one or both of them were hallucinating, and it was impossible to know what really happened that night.
The dominatrix was made to pay €200 to the "Weisser Ring," an aid organisation that helps victims of crime.