Meet the Radleys: Peter, Helen and their teenage kids Clara and Rowan. An everyday family who live in a pretty English village and juggle dysfunctional lives. So far, so normal. Except, as Peter and Helen know (but the kids have yet to find out), the Radleys happen to be a family of abstaining vampires. When one night Clara finds herself driven to commit a bloodthirsty act of violence, her parents need to explain a few things: why is their skin is so sensitive to light, why do they all find garlic so repulsive, and why has Clara's recent decision to go vegan had quite such an effect on her behaviour...? But when mysterious Uncle Will swoops into the village, he unleashes a host of shadowy truths and dark secrets that threaten to destroy the Radleys and the world around them.