In Boston, Detective Jane Rizzoli and Forensic Pathologist Maura Isles investigate a bizarre murder. A man has been found gutted and hanging in his home. When the remains of another victim are found, it is clear that this murderer has been at work for years, and not just in Boston. Five years ago, a group of travellers set off on an African safari. None of them was seen again - apart from one woman who stumbled out of the bush weeks later, barely alive. The only woman to have seen the killer's face. Has the 'safari killer' resurfaced in Boston? Jane is sent to Africa to find the one link between the two cases - the only survivor. And convince her to face death once again ...