The Dark Flood, by Deon Meyer

Almost fired for insubordination, detectives Benny Griessel and Vaughn Cupido find themselves demoted, exiled from the elite Hawks unit and dispatched to the leafy streets of Stellenbosch. Working a missing persons report on student Callie de Bruin is not the level of work they are used to, but it's all they get. And soon, it takes a dangerous, deeply disturbing turn.

Stellenbosch is beautiful, but its economy has been ruined by one man. Jasper Boonstra and his gigantic corporate fraud have crashed the local property market, just when estate agent Sandra Steenberg desperately needs a big sale. Bringing up twins and supporting her academic husband, she is facing disaster. Then she gets a call. From Jasper Boonstra, fraudster, sexual predator and owner of a superb property worth millions, even now.

For Sandra, the stakes are high and about to get way higher. For Benny Griessel, clinging to sobriety and the relationship that saved his life, the truth about Callie can only lead to more trouble.