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 the city’s crime rings. Are the murders really linked to human trafficking, or is the killer just playing sick games with her?