All Come to Dust by Bryony Rheam
Marcia Pullman has been found dead at home in the leafy suburbs of Bulawayo. Chief Inspector Edmund Dube is onto the case at once, but it becomes increasingly clear that there are those, including the dead woman's husband, who do not want him asking questions. The case drags Edmund back into his childhood to when his mother's employers disappeared one day and were never heard from again, an incident that has shadowed his life. As his investigation into the death progresses, Edmund realises the two mysteries are inextricably linked and that unravelling the past is a dangerous undertaking threatening his very sense of self.