Ginger Snaps 2 : Unleashed

While attempting to learn more about her dead sister's lycanthropy by mixing her own blood with the affected blood of her sibling, goth-styled teenager Brigitte (Emily Perkins) becomes affected by the werewolf curse herself. As the "disease" begins to take over her body, she requires increasingly stronger dosages of wolfsbane to combat it. But after a run-in with another wolf-creature, her beaten body is found---and taken to a drug rehab clinic. Unfortunately for the doctors and patients there, she has no access to her wolfsbane. Perkins and Katherine Isabelle reprise the roles they originated in the smart, creepy 2001 Canadian film, GINGER SNAPS.