A woman who was used as a sex-slave managed to escape her captor and save three other women held by him after she used knotted sheets to climb to safety.
Police have hailed the courage of the 29-year-old after she escaped from the flat where she was being held in Irkutsk, a city in the far east of Russia.
She was allegedly being held at the second-storey flat, along with three other women, by Emmanuel Maslow, 34, who has been arrested on charges of drug dealing and sex trafficking
The women were allegedly kept in chains at the flat and threatened with death if they made a noise.
A security door is said to have prevented the women from escaping and they were allegedly plied with alcohol.
The woman who escaped gathered the courage to do so after drinking alcohol, the Central European News agency reported.