Makers of upcoming Sherlock Holmes movie ‘opens Christmas Day’ have created a fascinating multi-episode game to promote movie. It features a new Photosynth every week until movie opens. Each of them were shot on set, and you need to explore them very carefully indeed to solve the mystery. Here's a teaser to get you in mood to explore dark underbelly of 1890s London via Photosynth.
To play game over at http://221b.sh/.