In the picturesque town of St Andrews, the heir to the famous Lacteus family fortune has been found dead in the estate swimming pool. The local police quickly determine that it wasn’t an accident, and DCI Argyle and Inspector McFayden are called in to investigate. Scotland’s best detectives will have to unravel a tangled family history and the damaged relationships between the surviving members of the Lacteus clan if they hope to catch a killer intent on destroying the family’s empire.