Wrong Light

Rick Cahill has never been a clean hero, and that's exactly what makes him worth following. In Wrong Light, the San Diego PI takes on a stalker case involving a radio host whose voice mesmerizes listeners but whose secrets run deeper than she'll admit. Before Rick can peel back those layers, a separate disappearance lands on him—one he may have set in motion himself. The result is a story built on moral weight as much as mystery: a man trying to do right in situations where right is never clearly marked, navigating danger, guilt, and loyalty in equal measure.

Coyle writes with the controlled tension of someone who trusts his readers to sit with discomfort. The pacing is deliberate without being slow—scenes build through character pressure rather than manufactured twists, and Rick's first-person voice carries the kind of weariness that feels earned rather than performed. By the fifth book in the series, Coyle has refined his Southern California noir atmosphere to something genuinely immersive: coastal geography, late-night unease, and a protagonist whose flaws aren't window dressing but the actual engine of the plot.