Blue Steel

NYPD officer Megan Turner shoots and kills a supermarket hold-up perpetrator on her first day on the job, but is suspended due to lack of evidence. She's later reinstated as a homicide detective when a spent shell casing from a subsequent murder has her name carved on it. As she investigates the case with partner Nick Mann, she discovers that the murderer is her boyfriend, Eugene Hunt, a commodities trader who claims to have been at the supermarket during the hold-up.