Jack Scott and Sian Laidlaw are forced to remain in Gibraltar with Jack's mother when she breaks her ankle - Eleanor believes she was pushed. When a chance meeting with a young photographer, Pru Wise, leads them into the path of trouble and up against a ruthless diamond robber it becomes clear that there are some dangerous forces at work. Returning to the UK, Jack and Sian are shocked when Pru's dead body is discovered in the boot of a car registered to Sian. When threatened they return to Gibraltar, to try and seek out and identify the diamond thief and end the nightmare. But first they must unravel a web of intrigue, face a violent climax in the house of an ex-diplomat, and face a fight to the death on the rocks of Gibraltar's most southerly shore.

When the police break into Joe Creeney's Liverpool house, his dead wife is hanging by a rope form the banisters and Joe is walking away holding the ladder. Lorraine Creeney has been dead just seconds, and there is nobody else in the house, yet Joe's sister, Caroline Spackman, is convinced her brother is innocent. Amateur PI Jack Scott is called in by solicitor Stephanie Grey. Faced with a trail of violence and lies going back twelve months to a previous murder for which Creeney had been convicted, Jack Scott must unravel mysteries both past and present. He must also examine possible links to a woman's murder in North Wales, and watch with despair as more bloody murders lead him to a truly shocking denouement.