Margie Orford 
Like Clockwork [EPUB ebook] 

When a beautiful young woman is found murdered on Cape Town’s Seapoint promenade, police profiler Dr Clare Hart is drawn into the web of a brutal serial killer. As more bodies are discovered, Clare is forced to revisit memories of the horrific rape of her twin sister and the gang ties that bind Cape Town’s crime rings. Are her investigations into human trafficking really linked to the murders or is the killer just playing sick games with her?