Wilderness of Mirrors by Olufemi Terry

When Emil's father suggests he set aside his studies to help steady his cousin's life, the young neurosurgeon-in-training moves in with indifferent relatives in Stadmutter, an unfamiliar, deeply divided city at Africa's southern tip. There he is drawn to Tamsin, a white PhD student, and Bolling, a wealthy Haitian-German whose reactionary ideas hold a curious allure.
Beneath Stadmutter's languid surface, a gathering Creole movement is straining the country's fragile racial peace. Through Bolling's machinations, Emil is pulled into events that threaten his future and pushed towards irrevocable choices.