In 1945, the semi-nude body of a woman is found in a two-bit Hollywood motel, a telephone cord wrapped around her throat; face frozen in a grimace of horror. The stolen car of a murdered motorist is parked in the motel parking lot, the owner lying broken and dead on the side of an Arizona highway. Al Roberts confesses and has spent the last 29 years in prison. Now, nearly three decades after meekly confessing, the aged Roberts swears his innocence. Jimmy O'Brien, defense attorney to the dregs of the criminal world, must find out why. Why did Roberts give a false confession? And why has he waited 29 years to tell the truth? O'Brien digs into the past, igniting a powder-keg that threatens to expose the long-held secrets behind Detour, the iconic Hollywood film documenting Roberts' story. Secrets that could destroy the underground aristocracy that has held power in Los Angeles, city of broken dreams, for years. Jimmy's ordeal takes him from the bleakness of Roberts' prison cell to the seedy streets of Hollywood, frantically searching to find out who took this DETOUR TO MURDER.