John H. Watson is a brilliant but conflicted medical student in late 19th-century London, recruited by a secret British agency for his expertise in reanimating corpses, a technology leaked from Dr. Frankenstein. He becomes a reluctant spy, tasked with recovering Frankenstein's lost research notes, which leads him on a globe-trotting adventure with his resurrected companion Friday to confront "The One," a prototype corpse seeking to create a true human soul, while exploring profound questions about life, consciousness, and humanity.