Hyper-competent tech CEO Ellie find herself beset by strange physical changes: hair sprouting in new places, running hot, trouble sleeping, losing time, rage, howling at the moon. There's a new power in her, one which is terrifying, but thrilling too. Suddenly the trials in her life - the troublesome new hire at work, the creep stalking her daughter - look... bitesize.
But the beast within isn't easy to control once released. With an obsessive hunter on her trail and a growing fear of what she's becoming, Ellie has to find a way to yoke her fury before she tears through the people she loves.