The existence of Vours, supernatural creatures who feast on fear and attack on the eve of the winter solstice, becomes a terrifying reality for fifteen-year-old Reggie when she begins to suspect that her timid younger brother might be one of their victims.

Pursued by the Vours, supernatural creatures who feast on fear and attack on the eve of the winter solstice, Reggie tries to hold onto her humanity as she finds herself gradually morphing into a Vour.