Death and danger stalk undercover investigator DJ Smith when she is seconded to the Portuguese Drug Enforcement Agency on the island of Madeira. After Luis Gomes" body is found floating in Funchal harbour, Comandante Figueira blames her for a security lapse which jeopardised the success of anti-drug operation, Boa Morte. Given a deadline to get results, DJ narrates the list of suspects, each of them with something to hide. But her investigations draw the attention of a ruthless killer to herself and her sniffer cat Gorgonzola. A tense end game takes place on the 2,000 foot cliffs of Cabo Girao, when DJ is faced with the hardest decision of her life.