A Death in Vienna — Frank Tallis

In 1902, elegant Vienna is the city of the new century, the center of discoveries in everything from the writing of music to the workings of the human mind. But now a brutal homicide has stunned its citizens and appears to have bridged the gap between science and the supernatural. Two very different sleuths from opposite ends of the spectrum will need to combine their talents to solve the boggling crime: Detective Oskar Rheinhardt, who is on the cutting edge of modern police work, and his friend Dr. Max Liebermann, a follower of Sigmund Freud and a pioneer on new frontiers of psychology. As a team they must use both hard evidence and intuitive analysis to solve a medium's mysterious murder -- one that couldn't have been committed by anyone alive.