The novel begins with the discovery of a body in a house in Long Acre, a street in London. Inspector Littlejohn is called to the scene to unravel the mystery surrounding the murder. As he delves deeper into the case, he uncovers a web of secrets, lies, and hidden motives among the residents of Long Acre.The title character, the Lady from Long Acre, plays a central role in the story, as her connections and interactions with the other characters become key elements in solving the mystery. Throughout the investigation, Inspector Littlejohn encounters various suspects, witnesses, and unexpected twists that keep readers guessing until the very end.