Fingersmith by Sarah Waters

Fingersmith is an extraordinary, ingenious tale of fraud, insanity and secrets and sapphic desire.  London 1862. Sue Trinder, orphaned at birth, grows up among petty thieves - fingersmiths - under the rough but loving care of Mrs Sucksby and her 'family'. But from the moment she draws breath, Sue's fate is linked to that of another orphan growing up in a gloomy mansion not too many miles away.
 
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The book that inspired Park Chan-wook's astonishing film The Handmaiden.
Shortlisted for the Orange Prize and the Booker Prize
 
'A page turning thriller while managing to be a tender love story' Adam Kay
'Intensely atmospheric, impeccably paced, and cunningly structured' Mail on Sunday
 
'A chilling, ingenious erotic thriller - unputdownable' Sunday Express
 
'Long, dark, twisted and satisfying... An unforgettable experience' Julie Myerson, Guardian