Ben Mears has returned to his hometown to write a book about the supposedly haunted Marsten House. When people around the Marsten House start dying mysteriously, Mears discovers that the owner of the mansion is actually a vampire who is turning them into an army of undead slaves.
The Glick boys' mother dies and becomes a vampire later, Mark's parents are killed outright by Barlow and Straker, and Susan's father is impaled by Straker.
No one gets shot, but the husband who's wife cheated on him holds the wife's lover at gunpoint and taunts him. The lover is visibly in distress, thinking he's gonna be killed.
Not very much, but there is a drop in one scene and some coming from multiple stab wounds when someone is impaled on horns and antlers.
Otherwise, a vampire kind of melts as he transforms into a skull. Not very graphic.