Taking inspiration from Alfred Hitchcock’s "Notorious" and Sydney Pollack’s "Three Days of the Condor", "Let Her Kill You" revolves around a mysterious case of espionage. Anna’s (Asia Argento) former life as a secret agent catches up with her when she discovers her isolated Swiss mountain cottage is under surveillance and has been bugged. As she tries to uncover the mystery and stay alive, a woman (Jeanne Balibar) from her past resurfaces but her intentions may not be what they appear.