Jeniffer Walton was working at hospital when her young brother came to ask for money. He told her that he lost a job because he made his boss angry. The next day, the police came to her flat and asked her questions about her brother. Then she heard that the police had been looking for her brother and some stolen jewellery from Frankfurt, Germany.

事件ものですが、主人公は重要人物の姉という設定なので新鮮です。ストーリー全体が3部に分かれており、スピード感のある展開で読んでて面白いです。殺人はなく、悪者と善者がはっきりしているので、大人だけでなく子供にもオススメです。