As the child of peasants, Karen grew up with a pair of simple red shoes. Then, when her parents died, Karen was adopted by a rich old woman who gave Karen a new pair of red shoes that would make princesses green with envy. This newfound wealth causes Karen to forget her humble origins and grow up to become a cruel and vain adult. Then, one day, the red shoes that sparked her greed come to life and steer Karen down a path she never would have imagined in her wildest dreams.