A weekend board meeting brings a jewellery firm’s accountant to the managing director’s impressive Guildford home. On the Sunday morning, he is found dead and is soon the subject of a murder inquiry by the local police.

Meanwhile, Chief Inspector French is investigating the sensational burglary of half a million pounds’ worth of jewels from the safe of an office in London’s Kingsway. French must determine the connection between the theft and the murder as he embarks on a perilous chase to track down the criminals.