Eighteen-year-old Ivy Lancaster has a bad dream of a local murderer. Later, Ivy, out for a run, visits Amber’s murder site, which feels familiar. Dad, Finn, equates it to déjà vu. Ivy experiences the mania and depression of bipolar disorder as she works her job as a framing carpenter and attempts to solve the murder. As she gets closer, her house is ransacked, she almost gets run off the road, and her best friend is injured. Is she putting the lives of her loved ones in harm's way for nothing, or will she solve the murder before it happens again?