A new case for Sherlock Holmes' sister! Enola Holmes is being pursued by the world's most famous detective - her own brother, Sherlock Holmes. While hiding in the largest, darkest, and dirtiest city in the world, she discovers a hideout filled with charcoal drawings and feels that the girl who drew them is her kindred spirit. But this girl, Lady Cecily, has disappeared without leaving a trace. Venturing into the dangerous streets of London at midnight, Enola must unravel the clues she has to find this left-handed lady. However, in order to save her, she risks revealing more than she should. Will Enola manage to keep her identity secret and find Lady Cecily? Or will she lose forever what she holds most dear - her freedom?