Accepting the non-violent case of the mysterious "taco fetish" convenience store robberies was like taking a breath of fresh air for the partners of Sunset Investigations. However, complex murders were soon to follow, each victim shrink-wrapped for easy handling, and marked with a code number. No sooner do Detectives Marcus Ryan and Frank Curtis capture the killer then the puzzling case of missing stamps is underfoot. Also, there's an inheritance dispute that leads to grizzly deaths. At first it was only pets, but then family members of the deceased millionaire start getting bumped off. Included among the victims is the prime suspect. Kerby Kalko, the agency rookie, gains experience the hard way when he tries to solve this one himself.