Rhiannon Ravenwood is a powerful witch operating as an intermediary between the supernatural communities and ensuring a tentative peace that keeps humans alive and blissfully unaware of the monsters in the dark. Adventurous in all aspects of her life, Rhiannon enjoys flings with various members of the supernatural community, enjoying life, and its pleasures, until her time runs out. Naturally, when Roman, the newest vampire Regent of her territory, strolls casually into her path, Rhiannon is happy for the opportunity to add him to the notches on her bedpost. Roman, however, may have more than dirty fun on his mind for the witch.

Anya Sorenson is Rhiannon's younger sister. Raised in the aftermath of her sister's abduction, Anya has constructed a careful, quiet life in Portland, Oregon, with ordinary problems and absolutely no monsters. Until a violent confrontation with a very real monster brings the sisters together. United with each other, Rhiannon introduces her younger sister to the supernatural world which has always existed alongside the human one. While this new reality has its flaws, it also has enticing monsters like broad-shouldered, tattooed, muscular, Jake - a werewolf in the local pack.

Time is running short for the sisters as a growing threat brews beneath the veneer carefully constructed by each of the supernatural communities. The sisters must learn who can be trusted, and how to navigate the coming changes no one can stop.