When a fresh case exposes history from a former investigation, LAPD detective Erin Bell (Nicole Kidman) is forced to face her demons, in this genre-defining work from Karyn Kusama (Aeon Flux). As a young detective, Erin and her partner Chris (Sebastian Stan) were placed undercover in the California desert to infiltrate a notorious criminal gang, controlled by their dangerously unstable leader Silas (Toby Kebbell), but the operation ends in tragedy. Years later, struggling to maintain a relationship with her daughter and still haunted by her past, she embarks on a mission for redemption and closure when it appears Silas has re-emerged.