Midnight

Midnight was published in 1989 and is one of the novels Dean Koontz wrote in the middle of the run that made him a fixture on the bestseller lists, alongside Watchers and Lightning. The book is a cross-genre piece: it has the shape of a horror novel, the mechanics of a science fiction story about a technology that changes people, and the pacing of a thriller, with several groups of characters converging on the same night.

Koontz divides the novel into two large parts and uses the structure to control what the reader knows. The first part follows the four visitors as they arrive and begin to notice inconsistencies; the second part reveals the experiment that the town's leading families agreed to and follows the consequences as they escape control. Koontz's usual interest is present throughout: the small town as a closed system, children in danger, and a dog in the story, which by this point in his career was a signature rather than an accident.

The novel is one of Koontz's darker books, with real body horror in it, and it sits between his science fiction-inflected thrillers and his later, warmer novels. It has been adapted for television and remains a favourite of readers who prefer the grimmer end of his work. It is a standalone.

The town is the antagonist here: a community that made a collective decision, kept it quiet, and then discovered that the people it agreed to become were harder to manage than the people they had been. Koontz keeps the explanation of the process vague enough that the horror stays human rather than clinical.