Beatrice is a broodmother: a vampire responsible for nursing newly made fledglings through the first years of their unlife. She nests in an abandoned, isolated warren of office space beneath her patron's skyscraper, raising two fractious fledglings: Gorgeous—once a heartthrob, now to all appearances a living corpse—who longs for the return of the lover who made him immortal with all the fervor of a rebellious teen, and Fortunata, the scion of Beatrice's mistress, alien and ambitious in her desires.

But when she decides to take on a third fledgling, the product of an attempted siring gone wrong, teetering between vampiric purity and ghoulish depravity, Beatrice finds herself strained to breaking between the societal and physical demands of her position, her own ravenous hunger, and an obsessive need to discover what’s happening to her—because her body is changing too, transforming her into something even more monstrous. She begins to crave the taste of flesh, something anathema to all vampires, and to swing between desperate hunger and vicious power.

Desperate to master herself once more, Beatrice courts a mortal OBGYN who might be able to unravel the secrets of her unnatural anatomy. But soon their connection threatens the secrecy of her vampiric coven as well as the safety and development of her dependent nurslings… and the humans they stand to slaughter if left to their own devices.