Woman, 18, kept as sex slave in underground cellar for 11 days before escaping after 'cutting ties with nail file'

A migrant worker in China kidnapped and repeatedly raped teenage woman over 11 days in a cellar he dug under his rented home.
Chen Xiaolong, 36, faces kidnap and multiple rape charges after holding the 18-year-old captive in the cramped basement beneath his single-room house in Jiaxing, Zhejiang Province. 
Chen confessed to imprisoning the woman and threatening to kill her.
She managed to escape after cutting her ties with a nail file, according to local reports.

Chen Xiaolong, 36, dug the makeshift dungeon (entrance pictured) under his home in China before kidnapping and repeatedly raping an 18-year-old woman

During 11 days of captivity, the woman was raped repeatedly, kept nude all the time and only allowed to leave the cellar twice, in order to take a bath in the room above.
She managed to work at gradually cutting her chains using a secreted nail file and was finally able to break free and escape.

He persuaded her to get onto his electric tricycle but then drove her to a secluded area where he threatened her with a knife and electric baton.
Chen then stripped and chained the woman up in the tiny 9ft by 3ft cellar.
The underground prison was just 5ft high and accessed through a tiny entrance the size of a floor tile. 

Chen's ID card. He was arrested after the woman managed to escape and call to neighbours for help

Chen began secretly digging the cellar after renting the house in 2012.
He had plastered the walls and lined the entrance with plastic sheets and newspaper.
When police arrived after the woman had raised the alarm they found stashes of porn and images of women on his front door and walls

Chen spent six months digging the tiny cellar to house a kidnapped woman