Actress Norma Rice is found dead on a train, and the letters REX are scrawled in red chalk on her compartment window. It is the third death to occur in a mysterious string of murders and Scotland Yard are compelled to send once again for Paul Temple. Temple, now acting as an investigator as well as a mystery novelist, is joined by his wife Steve as they are embroiled in this latest mystery. As they convene to discuss the case with the Yard's Sir Graham Forbes at a nightclub, they witness one of the performers die in the middle of her act before they have a chance to speak to her. Can Steve and Paul unmask 'Rex' before they strike again?

Swinging between London and Geneva, Paul Temple and Steve are involved in a case that involves finding the answer to one vital question: is Carl Milbourne, thought to have perished in a car accident, still alive? There are those who are determined to stop the Temples discovering the truth. And Temple's own life is in danger.

The detective novel ‘The Front Page Men’ is a resounding success, but its author Andrea Fortune keeps herself hidden from the public. When a series of robberies are committed, a calling card is left bearing the legend of ‘The Front Page Men’.

Sir Graham Forbes of Scotland Yard often calls upon Paul Temple to help with his latest unfathomable case...