In the opulent yet suffocating world of 1905 London aristocracy, Lady Eliza Winter grapples with societal pressures and her own quiet rebellion. When her best friend, the vivacious Penelope Vanderwahl, vanishes without a trace after confiding a shocking secret, Eliza is thrust into a mystery that forces her to navigate hidden truths, dangerous rumors, and unexpected encounters. Can she uncover the truth before Penelope's secret costs her everything?