Someone is killing prostitutes on Amarillo Boulevard after sending each a cryptic invitation to "cleanse your soul in the blood of the lamb." One victim mails a letter to John Lloyd Branson, the Panhandle's most famous lawyer, begging for his help. When she is murdered before she can talk to him, and her appointment is kept by her pimp and his stable of girls, John Lloyd declines any involvement in the case. His legal assistant, Lydia Fairchild is so incensed that she goes undercover on the Boulevard to search out the killer without John Lloyd's knowledge.
Lydia's bumbling attempt to masquerade as a prostitute causes chaos on the Boulevard, and catches the attention of the Butcher. The killer's taunting phone call to John Lloyd, promising that Lydia will be his next victim, brings the attorney roaring onto the Boulevard to protect Lydia and bring posthumous justice to the Butcher's prey.