Irene Adler is the only woman ever to have outwitted Sherlock Holmes... and the one who has come closest to stealing his heart. She has competed (and sometimes cooperated) with the famous fictional detective over six popular and acclaimed novels, featuring her daring investigations across the Continent. All along, the beautiful and brilliant American diva-turned-detective has managed to conceal her background and history, even from her dashing barrister...

Opera singer Irene Adler is the only woman to ever outwit Sherlock Holmes, but finds herself needing his help when a crafty reporter lures Irene, Holmes, and Irene's friend, Nell, to New York City, hoping to uncover a secret in Irene's past that even Irene can't remember.