“You will pay for this, you will die,” reads one of the messages she received and showed to The Times. “We are going to kill your mother in front of you.”

Ms. Prioul, then 20, was visiting Paris with friends when the assault occurred, she said. Since then, she has returned only when the court or the police summon her. She says that many websites have smeared her, saying that she was a professional escort.

“The purpose of my video is to give my testimony in all sincerity and to stop the rumors about me for a time, to get a little break,” she said.

Ms. Prioul is alternately poised, defiant and tearful in her video, as she describes how she met Mr. Lamjarred by chance at a club in Paris, when he invited her to his table. Later, with a small group, they decided to move the party to his hotel room.

The others were supposed to join, but never showed up. They danced in the room, and Ms. Prioul let Mr. Lamjarred kiss her. But when she would go no further, she says, he beat and raped her (without protection, she says).

She then locked herself in the bathroom. Eventually, she went out to get her phone. They had another fight, and he ripped her clothes and tried to rape her a second time, she says. That is when she ran out.

Jean-Marc Fedida, one of Mr. Lamjarred’s lawyers, declined to comment. But Éric Dupond-Moretti, another one of Mr. Lamjarred’s lawyers, told HuffPost Maghreb this month that the video did “not interest” him.