Are they witches? Aliens? Angels? Kate and Karen are two mysterious women, possessing otherworldly powers, who intervene and tamper with the lives of random strangers. They give these strangers the shift, a nudge towards the next stage of evolution. Sometimes the shift is subtle and graceful, and other times it is a forceful reckoning. And then the two women vanish as quickly as they appeared. Despite their great power, Kate and Karen hide some dark secrets of their own.