In the sobering yet hopeful years following the First World War, Lady Phoebe Renshaw and her lady’s maid, Eva Huntford, find their summer plans marred by an instance of murder . . .

Phoebe and her sister Julia are eager for a summer getaway at High Head Lodge, the newly purchased estate of their cousin Regina. But they are not the only houseguests. Regina's odd friend, Olive, is far from friendly, and Regina's mother and brother—bitter over the unequal distribution of her father's inheritance—have descended on the house to confront Regina.

In addition to the family tension, Eva is increasingly suspicious of Lady Julia's new maid. She questions Miss Stanley's loyalty and integrity, wondering why she left her former employer so suddenly. And why does Regina seem ill at ease around the maid, as if they were previously acquainted? Everyone, it appears, is on edge.

But things go from tense to tragic when their hostess meets an untimely end—mysteriously murdered in her bed with no signs of struggle. Now, with suspects in every room, Lady Phoebe and Eva must uncover secrets hidden behind closed doors—before a killer ensures they never leave High Head Lodge . . . alive.