Books like Seize the Night by Dean Koontz

Odd Thomas and his soulmate Stormy Llewellyn, together with a ragtag group of allies, navigate a dark desert landscape where past and present collide. As murderers and supernatural forces emerge, they race to stop a looming cataclysm.

When a murderous sociopath stalks her friends in Napa Valley, former survivor Chyna Shepherd must guard herself and an innocent stranger, risking life and sanity to confront the deadly intensity of Edgler Vess.

Landscape gardener Mitch Rafferty has only sixty hours to rescue his kidnapped wife, facing a ruthless ransom demand and a deadly confrontation that turns his suburban life into a relentless thriller.

In the secluded town of Snowfield, California, a shocking mystery unfolds after 150 people are found dead with grotesque injuries, sparking a chilling investigation into a mass murder that blurs the line between good and evil.

In Dean Koontz’s thriller "Watchers," a genetically engineered dog gains human intelligence, stirring a deadly conflict when it escapes, endangering those who cared for it and unleashing a state‑level secret.

When a sterile silver rain engulfs a quiet Californian mountain town, a couple and neighbors discover that all communication has vanished and a hidden menace now stalks them, unveiling an apocalypse that threatens the world.

A psychological thriller that follows Martie Rhodes as she and her husband Dusty confront a series of mind‑bending events involving a draconian psychologist, drug‑rehabilitated brother, and the terror of self‑fear.

Two isolated individuals flee a clandestine, illegal agency with a secret fascist agenda, chased by a ruthless operative who wields full governmental power.

After a bartender is selected by a serial killer, William Wiles must decide who will be murdered next, racing against time and increasingly brutal demands to save lives.

Young scientist Jeannie Ferrami discovers a baffling mystery. Two young men, law student Steve and convicted murderer Dan, appear to be identical twins. Yet they were born on different days, to different mothers. Jeannie investigates, but shadowy forces retaliate and Steve is accused of a terrible crime. As Jeannie falls in love with him, can she be sure he is different from his evil twin? Solving the mystery will mean deadly danger. From Amazon: Using a restricted FBI database, genetic researcher Jeanie Ferrami has located identical twins born to different mothers. Frightened by her bizarre discovery, she is determined to discover the truth at any cost—until she finds herself at the center of a scandal that could ruin her career. To extricate herself, Jeannie plunges into a maze of hidden evidence. With growing horror, she uncovers a cynical, far-reaching conspiracy involving disturbing genetic experiments and some of the most powerful men in America—men who will kill to keep their secrets concealed.