“Watchmen” is set in an alternate 1985 America in which costumed superheroes are part of the fabric of everyday society, and the “Doomsday Clock” – which charts the USA’s tension with the Soviet Union – is permanently set at five minutes to midnight. When one of his former colleagues is murdered, the washed up but no less determined masked vigilante Rorschach sets out to uncover a plot to kill and discredit all past and present superheroes.
