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In 1985, deranged vigilante Walter Kovacs / Rorschach is killed by Dr. Manhattan while attempting to expose Ozymandias as the mastermind behind the "Squid"; a mutated psychic organism that kills half of the population of New York. The event inspires a tentative world peace under the illusion that an extraterrestrial attack is imminent. Thirty-five years later, Rorschach is the basis of many far right-wing conspiracy theories involving serving U.S. President Robert Redford, deceased superheroes and an alien invasion. An unnamed homicide detective investigates the crimes committed by Wil Myerson, a radicalised comic book artist who assumed the Rorschach mantle and was killed during the attempted assassination of a presidential candidate.