Wartime secrets, smugglers' caves, skeletal remains... And the holiday's only just begun... Summer, 1923. Reporter Iris Woodmore travels to sunny Devon with her friends Percy Baverstock and Millicent Nightingale for her father's wedding to Katherine Keats. But when Millicent uncovers skeletal remains hidden on the private beach of Katherine's former home, Iris begins to suspect her future stepmother isn't all she seems. Police reveal the dead man was a smuggler who went missing in 1918. But when a new murder occurs, they realise the killer is still in their midst - and the link between both murders is Katherine. Could Iris's own father be in danger?