Breach is an understated gem, both as a movie and a score. While the film can be quite tense at times, its soundtrack mostly reflects the plotting, devious side of a spy gone awry. Mychael Danna is a master of methodical, swelling orchestral arrangements, foreboding harp introductions, and angsty piano solos (quite a lot in this case). A few pinches of tasteful programming keep the momentum going. What more do you really need for setting a sad mood?