Set in New York City, Alonso-Sierra’s brilliant latest mystery featuring Detective Nick Larson takes readers on an exhilarating journey as Nick finds himself embroiled in a serial killing investigation. The workload is taking its toll on Detective Nick Larson and his partner, Detective Victor Sacco with Manhattan’s Sixteenth Precinct under siege by the flu, and Nick’s personal life is not in its best shape. When Nick is called to investigate a suicide, his instincts leads him to widen the scope of his investigation. More deaths follow, and the detective pair find themselves entangled in the sinister machinations of a cunning serial killer. Alonso-Sierra builds plausible plot twists while simultaneously delving into the struggles and anxieties of her protagonist’s lives, and all her characters, including the secondary ones are rendered in striking and precise detail. The intriguing plotline is enhanced by Nick and Laura’s burgeoning relationship. Along the way, Alonso-Sierra delves into issues of personal identity, the intricacies of love and relationship, and how mental illness affects the family and loved ones. The pacing stays swift, and the shockingly satisfying climax to the gripping, suspenseful plot will leave the readers clamoring for more of Nick’s adventures. Lovers of intelligently delivered and psychologically sophisticated plots and motivations will find a lot to like in this un-put-down novel.