Julia Reynolds is a homicide detective with beauty, brains, a smart mouth and a sharp investigative eye. She is the perfect foil for Tony Camarelli, who is handsome, tough, dedicated and thorough. Together they make a great team, trading banter, fighting crime, out to catch the bad guy. It all sounds like a normal day at the office for these two partners. Except for one little detail...she's dead. Julia and Tony have worked together for twelve years. Their partnership is cut short the day that Julia is killed in the line of duty and Tony is left to pick up the pieces. When Julia's ghost comes back to haunt him, she wreaks havoc on his peace of mind, plays on his nerves and interrupts his love life. It soon becomes clear that she won't leave him alone until he agrees to partner up again. As she did in life, Julia helps Tony with the investigation, but this time she has a new and unique perspective from beyond the grave, and they will need it. The duo is about to face the most challenging case of their careers. A cunning serial killer, who doesn't fit any criminal profile, stalks the young women of Sacramento, daring the local authorities and the FBI to catch him. Hot on the trail of a sadistic monster, they must fight against time while trying to adjust to their new "living" arrangements.