Murder by Numbers (2002)

Watch Murder by Numbers: Richard Haywood, a Californian high school's coolest kid, secretly teams up with another rich kid in his class, brilliant nerd Justin 'Bonaparte' Pendleton, whose erudition, specially in forensic matters, allows them to plan elaborately perfect murders, just for the kick, for which they set up Richard's marijuana supplier, their school's janitor Ray Feathers, as a psychotic serial killer. The case is assigned to detectives Cassie 'the hyena' Mayweather, who carries a sequoia-size chip on the shoulder from her previous life, and her brilliant new partner, Sam Kennedy, who just transferred from the vice squad; they can work together very well, and even fit romantically, but fall out over...