Paul Temple And The Gregory Affair by Francis Durbridge

In this thrilling detective novel, the suave and astute private investigator, Paul Temple, is drawn into a perplexing case involving a mysterious criminal known only as "The Gregory." As Temple and his resourceful wife, Steve, delve deeper into the investigation, they encounter a web of deceit, danger, and intrigue that spans across the glamorous yet shadowy world of high society. With each clue leading to more questions, the couple must rely on their wit and courage to unravel the identity of "The Gregory" and bring justice to those affected by his nefarious schemes.