Foreign royalty found dead on an island estate. A fractious gathering provides a plethora of suspects. Can Macleod and McGrath sort the treasure from the driftwood to reveal who truly gains the most from the duke's death?

DI Seoras Macleod is ordered away from his recovering partner Jane, to investigate the suspicious death of a foreign duke at the estate of his mother. Found naked and deceased in a small loch near the family's holiday estate, the duke is not short of enemies at the milestone gathering of his remaining parent's birthday. Amidst bluster and genuine loathing, Macleod, and his faithful Sergeant McGrath, must hunt down a killer who seems ready to destroy an entire lineage.

Blood runs thicker than water, every drop!