After being turned into a werewolf on the night of a full moon, privileged high school senior Heidi Mills must decide whether to turn herself in or go on the run, forcing her to confront the harsh realities of a world plagued by a werewolf epidemic.

High school senior Heidi Mills seemingly has it all: a charming (arrogant) boyfriend, loving (wealthy) parents, and an acceptance letter to Harvard (well, not yet). With her mom and stepdad away on vacation, she's going to host a rager at their mansion to celebrate the end of high school. The party is tomorrow. But the full moon is tonight--when the worldwide werewolf epidemic that has run rampant for the past few years turns deadly, and the infected transform into beasts. Safe in her home, with its state-of-the-art lockdown system to keep the monsters out, Heidi expects to wait out the night. But when two intruders show up to rob what they think will be an empty home, the life of privilege, ease, and safety that Heidi has taken for granted comes crashing down. Suddenly exposed to the realities of this virus and the way that the rest of the world has been living all this time, Heidi embarks on a dark adventure accompanied by the mysterious--but intriguing--boy who broke into her house. As she fights to survive the underbelly of a post-pandemic society, she'll learn that not all monsters have fangs.