When the dead body of a woman is found in the woods near the river, feisty homicide detective Cassie Mayweather (Sandra Bullock) and her new partner, Sam Kennedy (Ben Chaplin) are assigned to the case. That's the premise for MURDER BY NUMBERS, a psychological thriller directed by Barbet Schroeder (REVERSAL OF FORTUNE, SINGLE WHITE FEMALE). Determined to solve the crime, Mayweather follows her hunches and microscopic bits of evidence, focusing her investigation on two teens: Justin Pendleton (Michael Pitt), a brilliant, misunderstood nerd, and Richard Haywood (Ryan Gosling), a smooth talking, spoiled rich kid. From the beginning, the audience knows that this unlikely duo has formed a secret bond that pushes the boundaries of morality and the law in their attempt to commit the perfect murder and experience complete freedom. It's up to Mayweather, who buries herself in her work in an attempt to forget her own tormented past, and Kennedy, a transfer from Vice who is working his first homicide case, to ignore the stereotypical profiles and see past the obvious in order to solve the crime. Slowly but surely, the truth comes out as Mayweather works on instinct while battling her own demons and being drawn into the boys' game of cat-and-mouse.