The opening scene establishes the mysterious tone and Victorian era setting of Sherlock Holmes. It begins with rainy floor tiles and production logos being filmed in an unsteady handheld style. The protagonist is seen running from horse-drawn carriages carrying police officers through the streets of London. He jumps through a unexpected door at St. Paul's Cathedral to escape, finding only darkness on the other side. The scene ends in a black fade out, leaving the viewer curious about what's behind the door.