When Murdoch finds himself invited to a meeting of the local eugenics society, which is committed to research on genetic engineering, a dog shows up with a severed arm.
- Been There, Shaped History: At the episode's end, H. G. Wells is inspired by the experimentation to write a story exploring it in more grisly detail - he's obviously referring to the story The Island of Doctor Moreau.
- Deliberate Values Dissonance: The Eugenics Society and its beliefs are unthinkable in the modern era, having seen the horrors of actually putting such beliefs into practice on a societal scale by the Nazis. In this setting, decades before the Nazis and their Holocaust, Eugenics is controversial but acceptable.
- Evilutionary Biologist: Dr. Dryus Alger is a prominent member of the Eugenics Society who is abducting dogs and conducting illegal experiments in his attempts to 'perfect' humanity.
- Reality Ensues: At one point, Murdoch and Brackenreid discuss the beliefs of the Eugenicists, with Brackenreid commenting that everyone should "know" the effects of keeping the bloodline pure before pointing to a portrait of Queen Victoria: this is a comment on the myriad biological flaws (most prominently hemophilia) suffered by the Royal House of Hanover due to generations of cousin-on-cousin inbreeding.