Murder by Numbers

Murder by Numbers is a movie starring Sandra Bullock, Ben Chaplin, and Ryan Gosling. Two gifted high school students execute a "perfect" murder - then become engaged in an intellectual contest with a seasoned homicide detective.
Tenacious homicide detective Cassie Mayweather and her still-green partner are working a murder case, attempting to profile two malevolently brilliant young men: cold, calculating killers whose dark secrets might explain their crimes.