Superintendent Battle is called to investigate the murder of an elderly widow at a clifftop seaside house in Devon... What is the connection between a failed suicide attempt, a wrongful accusation of theft against a schoolgirl, and the romantic life of a famous tennis player? To the casual observer, apparently nothing. But when a houseparty gathers at Gull's Point, the seaside home of an elderly widow, earlier events come to a dramatic head. It's all part of a carefully laid plan for murder...