L'heure des chauves-souris

Blurb

The Servants of Twilight is a novel by best-selling American suspense author Dean Koontz. The book's plot revolves around a single mother being tormented by members of a religious cult whose leader believes the woman's son to be the Antichrist. A film adaptation was released in 1991.
The book was originally published in 1984 as a paperback original under the pseudonym Leigh Nichols. Its original title was just Twilight.