Detective Michael Britten is a detective with the Los Angeles Police Department. After being involved in an accident, Michael begins living in two realities: one in which his wife died in the accident, and the other in which his son died. In each reality Michael is working with a different partner and psychiatrist. Despite the divergent realities, Michael is able to use clues from each world to solve cases in the other. Despite the dangers in living in these two realities, Michael refuses to give up either one, because it is the only way for him to hold onto his family.