While playing hide-and-seek in London’s Holland Park, a young au pair overhears a murder being planned. She discovers when it’s due to happen, but not to whom—and as for the place, it’s somewhere that sounds like "The Something Somethings." Given time, the name might come to her, but time is just what she doesn’t have... And the worst part of it is that when she tells her employers, they don’t believe her. No one believes her. Are they right to doubt her word? Or can she alone prevent a murder from taking place? And how does a banned book fit into the plot? Meanwhile, all too quickly, she finds herself in danger.