An Anonymous Girl delivers a sleek psychological thriller that will satisfy readers craving twisty plots and morally gray characters. Hendricks crafts a cat-and-mouse game between Jessica, a cash-strapped makeup artist who lies her way into a psychology study, and Dr. Shields, the enigmatic researcher whose ethics study becomes deeply personal.

The dual perspective structure works well, allowing readers to see both women's motivations while keeping key information strategically hidden. Jessica is a relatable protagonist—flawed but sympathetic as she navigates financial struggles and relationship drama. Dr.

Shields proves more compelling as her composed facade gradually cracks, revealing obsessive tendencies that drive the plot's escalating tension. The book excels at maintaining suspense through carefully doled-out revelations about Dr. Shields' past and true intentions.

Hendricks writes with crisp, accessible prose that keeps pages turning, and the Manhattan setting adds glamorous polish to the increasingly dark proceedings. The exploration of manipulation, trust, and the lies we tell ourselves gives the thriller some psychological depth beyond pure plot mechanics.

However, the book stumbles in its final act, where coincidences pile up and character motivations become less convincing. Some plot threads feel underdeveloped, particularly Jessica's romantic subplot, which serves more as convenient misdirection than meaningful character development. The ending, while shocking, may strike some readers as overly convoluted. This book works best for fans of domestic thrillers who enjoy unreliable narrators and don't mind some logical stretches in service of surprising twists. Readers seeking deeply complex characters or literary prose should look elsewhere. Those who loved Gone Girl or The Woman in the Window will likely appreciate the similar blend of psychological manipulation and suburban secrets, though An Anonymous Girl doesn't quite reach those heights of sophistication.