Deadly Sibling Rivalry (2011)

Janna, the responsible twin, and Callie, the wild twin, get into a car wreck. Callie walks away from the crash but Janna falls into a coma. Callie suddenly starts to live as Janna in order to evade the police for a drug charge. Janna's daughter, Fiona suspects her mother is the coma victim and not Aunt Callie.