In this mystery, the last entry in the Inspector Hornleigh series, Inspector Harker and his assistant take a two-week vacation to the English seaside. Just as the vacation is about to end, a fellow guest in their boardinghouse drives over a cliff and is burned to death. The local cops consider it an accident, but the Inspector has his own suspicions and begins to investigate. He soon exposes a gang of crooks planted the car with another body to cash in on an insurance policy.