Plot: Murder By Numbers is a psychological suspense-thriller that tells the story of a tenacious homicide detective, Cassie Mayweather ('Sandra Bullock' (qv)) and her new partner Sam Kennedy ('Ben Chaplin' (qv)) who become pitted against two malevolently brilliant young men ('Ryan Gosling (I)' (qv) and 'Michael Pitt (II)' (qv)) in an ingenious battle of wits as they try to solve a murder case.