A young woman in 1930s Brighton uncovers a dangerous secret while investigating a seemingly simple case of a missing heirloom. Mirabelle Bevan, a spirited and independent woman, takes on the task of finding a stolen brooch, only to find herself entangled in a web of deceit and betrayal. She must navigate the social strata of Brighton, from the glittering piers to the shadowy back alleys, while evading those who wish to keep the truth buried. The narrative unfolds through Mirabelle's sharp observations and her determination to bring justice to light.

The Mirabelle Bevan series, beginning with Brighton Belle, is generally well-received for its engaging historical setting and its capable, independent female lead. Readers often praise Sara Sheridan's ability to evoke the atmosphere of 1930s Britain and create compelling mysteries. The books are noted for their blend of historical detail and classic detective fiction tropes, offering a satisfying puzzle for fans of the genre. The series is appreciated for its strong character development and its exploration of societal norms of the era.