FirstLoveMovies

https://www.imdb.com/title/tt7846844/

On the dawn of her 16th birthday, Sherlock Holmes' little sister Enola Holmes finds out that her beloved mother has mysteriously disappeared without telling her. While traveling to London for further answers, Enola not only must locate her missing mother, but she must work to uncover the mystery that involves the runaway of a wealthy family. Little does Enola know is that her older brothers--Sherlock and Mycroft are hot on her tail and have intentions to send her back to school.