T-Men (1947)

T-Men is a surprisingly great film from Anthony Mann. I've only seen his westerns (fine) and his terrible epics (El Cid, The Fall of the Roman Empire), but this one is a sleek film noir that follows some upstanding law enforcement agents (improbably enough) from the Treasury department. T-Men is gorgeously shot, totally suspenseful and engrossing, and beautifully performed by Dennis O'Keefe and Alfred Ryder. There are all of these very strange sequences in Los Angeles steam rooms, and the photographer, John Alton, makes the most of his stark whites and stark blacks. This movie is filled with haunting silhouettes and shady corners. I was really into this.