<b>The fourth installment of the critically acclaimed manga adaption of BBC Hit <i>Sherlock</i> introduces the femme fatale and the detective''s famous rival, Irene Adler! </b><br><br>Fresh from confronting Moriarty in the end of <i>The Great Game</i>, 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.