London is pitch black. It's wartime and the lights are out to confuse Nazi bombers. But in this darkness a killer as warped and as violent as Jack the Ripper is hunting for women night after night in the bomb-damaged streets. 

The women murdered by the so-called Blackout Ripper received little sympathy at the time and have been largely forgotten since. So historian Hallie Rubenhold and criminologist Alice Fiennes have gathered fresh evidence about the rich and complex lives of the women - and revealing what put them in the path of a killer. 

Bad Women: The Blackout Ripper starts with a double episode drop on Oct 11. 

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