<p>When Dr Watson fails to return home after responding to an urgent medical call Sherlock Holmes senses foul play.<br><br>His friend's disappearance leads Holmes from the elegant townhouses of Marylebone to the isolated cottages of Surrey following a trail grown cold after fifteen years.<br><br>With only a dropped journal as his first clue Holmes must unravel a mystery where nothing is as it seems. Why would someone target the loyal doctor? What connection does this have to a patient who died under his care years ago?<br><br>As the hours tick by Holmes finds himself in a race against time to save his closest friend from someone determined to make Watson pay for a crime he didn't commit.</p>