Madeline Geiger is a cybersecurity expert used to keeping threats at bay. But when a ransomware attack crashes her system, she discovers it's not just her files under siege -- her life and mind are too. Meanwhile, a promising online date with Vincent, a neurobiologist, turns strange. His work? Manipulating rodent behavior with lights and code. His interest in Madeline? Something beyond sex, love, and even marriage.

As her home life spirals -- thanks to a fading mother, a watchful new caregiver, and the return of long-buried grief -- Madeline begins to suspect she's being stalked, both digitally and physically. And the deeper she digs, the more disturbing the connections become between her attacker, her suitor, and the dark science lurking behind Vincent's lab door.

The Fourth Woman is a tense, darkly smart thriller where digital sabotage meets psychological suspense, and a woman must confront not only the stalker behind the screen -- but the unraveling happening inside her own home.

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• Mystery, Thriller & SuspenseThrillersPsychological
• Mystery, Thriller & SuspenseThrillersDomestic

• Publication Date: December 18, 2025
• Text-to-Speech: Disabled
• Lending: Disabled
• Print Length: 345 Pages
• File Size: 26 KB