Psycho-Pass is set in a futuristic Japan governed by the Sibyl System, a powerful biomechatronic computer network which endlessly measures the biometrics of Japanese citizens’ brains and mentalities using a “cymatic scan.” The resulting assessment is called a Psycho-Pass, which includes a numeric Crime Coefficient index, revealing the citizen’s criminality potential, and a color-coded Hue, alerting law enforcement to other data, as well as the improvement (clearing) or decline (clouding) of said Psycho-Pass.
Believing in humanity and order, policewoman Akane Tsunemori obeys the ruling, computerized, precognitive Sibyl System. But when she faces a criminal mastermind who can elude this perfect system, she questions both Sibyl and herself.