Howling IV (The Original Nightmare) [1988]

A successful author was sent to the small town Drago because of a nervous breakdown, and gets wound up in a mysterious mystery about demons and werewolves. She starts seeing ghosts and dismisses them as her own imagination, but when they turn out to be real, she starts to get suspicious of the small town and of its past. But at the heart of this scenic, serene village is much darker than its benign appearance; and while she hopes her vacation will dispel her visions, a sinister presence has drawn her there. Soon she will discover that the ghosts that have haunted her are real and that her horrific visions are a mysterious message.