Arbuthnot ‘Arbie’ Swift arrives at Dashwood House, a glamorously modern hotel in the up-and-coming resort of Galton-next-the-Sea, but all plans for a relaxing stay are scuppered when one of the guests is found dead. The body is found in the writing room, the victim part of a set visiting the seaside town for an engagement party, which happens to include Arbie’s old friend, Val.

Familiar with Val and Arbie’s previous experience in solving puzzling crimes, the bride asks the pair to investigate. They quickly discover that the victim had no shortage of enemies, and many of the guests are up to no good. But who is simply hiding a secret, and who is hiding murder?