Lady Virginia, Countess Eversan-Walters, returns to her home in Bromley after a long journey. She plans to spend the summer raising Liam, the young baronet she has taken under her protection. However, the calm atmosphere is disrupted when a new maid and a governess arrive at the manor, and then thefts and a murder occur. Detective Ellis asks Virginia to help with the investigation, and she agrees—unaware that it will lead to a series of unexpected events, including surprises in her own house.