Some key characteristics of Film Noir include:-A specific visual style characterized by low-key lighting, deep shadows, and obscuring camera angles.
-Disorientation through plot devices such as a non-linear plot line, an unreliable narrator, or flashbacks.
-A sense of impending doom or hopelessness.
-Stories about crime, either from the perspective of the criminal or the investigator. These crimes often include robberies, heists, or crimes of passion such as murder or suicide.
-Morally questionable protagonists that are not portrayed in a sympathetic light. They may be mentally unstable, corrupt, have a criminal background, or be involved with criminals.
-The “femme fatale” – a mysterious and seductive love interest who often leads the hero into compromising positions. She is not necessarily a bad person, although she is most often portrayed in an unflattering light.