This episode is very loosely based on the Sherlock Holmes' story "The Red-Headed League".
[19:21]Jennie Silverman punches up the ZIP Code (postal code) 94129. This is the post office at 558 Presidio Boulevard in San Francisco.
Disher (Jason Gray-Stanford) has a girlfriend named Crystal Smith, played by Jill Wagner She is described as the "...world's leading wallet photo model." Crystal Smith is the name of Playboy's Playmate for September 1971.