"Seize the Night" is a thrilling novel by Dean Koontz that follows the journey of Christopher Snow, a man with a rare medical condition that makes him sensitive to light. Living in the coastal town of Moonlight Bay, Snow's life takes a harrowing turn when he discovers that his hometown is plagued by a series of mysterious disappearances. The story intricately weaves elements of suspense, horror, and science fiction as Snow sets out to uncover the truth behind these unsettling events.