The story of two outcast sisters, Ginger and Brigitte, in the mindless suburban town of Bailey Downs. On the night of Ginger's first period, she is savagely attacked by a wild creature. Ginger's wounds miraculously heal but something is not quite right. Now Brigitte must save her sister and save herself.

A smart, resourceful, and wickedly funny teen-horror film that reinvents the werewolf myth as a potent metaphor for pubescent angst and humiliation.
Scott Tobias
AV Club