In the year 2029, Niihama City has become a technologically advanced metropolis. Due to great improvements in cybernetics, its citizens are able to replace their limbs with robotic parts.

Contestants compete for prizes and cash, including cars and vacations, in games that test their knowledge of consumer goods pricing.

In 1971, four women defy convention and join Mexico's first female police force, only to discover it's a publicity stunt to distract the media from a serial killer. As the body count grows, they make a pact to bring the killer to ...