Using powers of deduction and communication, the players work as a team to eliminate dead leads and find clues to prove who, how, and why.
At the start of Beyond Baker Street, players select one of the crimes to solve, and a number of suspects, motives, and opportunities will be available for the players to convict of the crime. Players win together if they can gather enough evidence to make a conviction before Holmes does; otherwise, they crumble under the stress of the case.