Nancy Freeman (Andrea Riseborough) lives at home with her disabled mother Betty (Ann Dowd) in upstate New Jersey. This is one of those towns where everything seems to be in slow motion. Overcast and perpetual winter. Nancy works at a dentist mill, she regales with tales of imaginary vacations that she swears she's been, for the audience is clear that this is not the truth.

For audiences seems pretty clear that Nancy is a person with a lot of issues who constantly lives the life of others. Suddenly her mom dies, she invents the idea after watching the news about the story of a missing girl for 30 years that she is the missing girl. This brings her to the house Ellen Lynch (J Smith-Cameron) and Leo Lynch (Steve Buscemi) where she takes advantage of their need to find the missing daughter and use them for her benefit.

The film Nancy is a good approach by first-time director Christina Choe delivering an impressive movie where Andrea Riseborough plays a disturbed person who can join the list of Hollywood female psychopaths in her search of stealing people's identity and live their life too.