Bob Arctor leads a double life. In one life he is Bob Arctor, a small time Substance D dealer and substance abuser, living the life of a junkie amongst other junkies. In his alter life he is Agent Fred, a narcotics officer fighting the war against Substance D and, incidentally, assigned to investigate Bob Arctor. Instantly, the viewer is introduced to Bob/Fred as a hyper-sensitive human being, capable of managing the complexities of two separate identities; his identity as a narcotics officer and his identity as a junkie. However, the viewer also understands Arctor as an individual suffering from a fractured identity, forced by duty to live two separate lives, simultaneously. I argue that identity is integral to what constitutes a human being, and therefore a fractured identity, as in the case of Arctor, positions this character in the margin of Mori's “uncanny valley”. A side effect of prolonged abuse of Substance D is the separation of the right and left hemispheres of the brain. As a result, Bob/Fred, who suffers from this condition, is no longer capable of perceiving the connection between his life as Bob Arctor and his life as Agent Fred. This marks the beginning of Bob/Fred's loss of identity, and therefore his digression into a more robotic nature. The viewer bares witness to Arctor's slow and progressive mental depletion at the hands of substance D and becomes aware of an uncanny disconnection between Bob/Fred and reality, a direct result of his loss of identity and therefore his human nature. Arctor appears virtually unaware of his surrounding and has regressed to a vocabulary of few words, walking aimlessly in a trance-like state. As Arctor's situation increasingly worsens he is committed to a rehabilitation clinic where he is reduced to a shell of a human being, incapable of social function. This final stage of digression palaces Arctor firmly outside the level of human-to-human empathy and into the Mori's “uncanny valley” and what I argue is a space of human digression towards a robotic nature.