The brutal murder of a young worker at an all-night ice rink in Phoenix turns into a cat-and-mouse game as Detectives Steve Orona and Alex Femenia track a cunning killer.

And when a body is found floating in the Arizona canal, detectives Det. Tommy Kulesa and Det. Paul Dalton must solve a double mystery - who is their victim and who is their killer?

First 48’s cameras were with the detectives of Phoenix’s expert homicide team from the first moments of their investigations to their dramatic and stunning resolutions.