"First Kill" tells the story of Juliette, a girl who comes from an influential vampire family. In order to take her place in her family's ranks, Juliette must complete her first kill. She targets Calliope, a new girl in town who ironically turns out to be part of a family of vampire slayers. "Both find that the other won't be so easy to kill and, unfortunately, way too easy to fall for," the series description reads.