Nicholas Ray usually found unconventional perspectives on genre films. This is film noir, about an out-of-control big city policeman ( Robert Ryan) who is so brutalised by his experiences that he becomes frustrated, isolated and unable to relate to others. Then the writer/director takes him out of his normal habitat, and places him into a rural setting.
The detective is pressured by his chief to close the case of a cop killer, but disciplined when he gets results by any means. Hated by the public and tormented by the ceaseless feed of crime on the police radio, he becomes consumed by anger. The only women he meets are sex workers or those who fetishise his violent threat.
He is sent upstate to the Colorado mountains to take over a case. Ida Lupino plays the blind recluse whose brother is suspected of murder. Because of her disability, she is all feeling. In contrast, when she asks to touch the cop's hand to better know him, we sense his emotional numbness and his psychological sickness.
This film is dominated by Ryan's deep performance as the traumatised cop. The percussive brass score by Bernard Herrmann drives the action. There is a brilliant script from Al Bezzerides, full of dark poetry with a touch of the spiritual. It's an unconventional film noir that moves from pessimism towards the faint possibility of hope.