Set against the backdrop of 18th century Georgian London, Harlots is a powerful family drama offering a brand new take on the city's most valuable commercial activity - sex. Based on the stories of real women, the series follows Margaret Wells (Samantha Morton) and her daughters, as she struggles to reconcile her roles as mother and brothel owner. When her business comes under attack from Lydia Quigley (Lesley Manville), a rival madam with a ruthless streak, Margaret will fight back, even if it means putting her family at risk.