The fourth installment of the critically acclaimed manga adaption of BBC Hit Sherlock introduces the femme fatale and the detective's famous rival, Irene Adler! Fresh from confronting Moriarty in the end of The Great Game, Sherlock Holmes (Benedict Cumberbatch) and John Watson (Martin Freeman) are called to save the royal family from blackmail at the hands of Irene Adler (Lara Pulver), a dominatrix known as The Woman . Adler pulls Sherlock into a complex web of mysteries involving the CIA and the MOD, with secrets that could threaten to threaten international security and topple the monarchy.