Lethal Obsessions

A DCI Gerald Croft Thriller

Fiction - Thriller - Psychological
Kindle Edition
Reviewed on 08/24/2026
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    Book Review

Reviewed by Anne-Marie Reynolds for Readers' Favorite

Lethal Obsessions by Sarah Stuart is a DCI Gerald Croft Thriller that pulls Croft into a series of disturbing cases triggered by the discovery of human bones at a worksite. A young woman is left traumatized by a rape no one will admit happened, a once‑peaceful home is torn apart by a stepmother and her volatile children, and an animal rescue center hides cruelty behind its doors. Each case is driven by obsession, and Croft must unravel them before the damage spreads. As Croft works to untangle these threads, he must determine whether the perpetrators can be stopped through the justice system or whether vigilante action will strike first.

Lethal Obsessions by Sarah Stuart is one of the darkest entries in the DCI Gerald Croft series, and it pushes every boundary the previous books set. The author layers multiple story lines with precision, each one driven by characters whose obsessions warp their judgment and escalate into brutality. The crimes are graphic, the psychological elements are intense, and the emotional fallout is heavy, especially in the storyline involving a rape denied by witnesses. As always, the author's strength lies in her ability to build tension through character rather than spectacle; every subplot feels lived‑in, messy, and painfully human. Croft himself continues to anchor the series, steady in the chaos but increasingly aware of how fragile justice can be when obsession takes hold. This is a gritty, unsettling thriller that digs deep into the darker corners of human behavior, perfect for readers who want a crime novel that refuses to soften its edges.