The Last Passenger

The year is 1934. You are in a train compartment on board the midnight train from Copenhagen to Prague. You have just arrived in Prague, but a criminal incident has occurred during the night: one of the train's passengers has not arrived alive. He is found murdered in the compartment. The killer has left traces and clues around the train car, and you now have one hour to dust off and uncover the killer. You must reach it before the killer gets out of Prague. Or worse yet; strikes again!