Tenebrae lives for the hunt, but is often distracted by a pretty face, much to the chagrin of her friend Mortifera. To the outside world they are head of an elite boarding school for young women, but by night they are a family of vampires who stalk their prey with brutal glee.

World War II is over and Iris Cole is betrothed to a handsome Captain—but the future is hard to enjoy when she still secretly mourns her lost lover, Lillian. At a military base in Germany she meets the mysterious Beth and becomes something other than human, swept up in Beth's grim cause, and determined to learn what Beth has to do with Lillian.