We is a Russian dystopia written in 1924, before things turned, well, dystopian back in the U.S.S.R. In the futuristic society of this novel, everything is supposed to be utopian and perfect, but it's actually hell on earth. Yevgeny Zamyatin wrote this just after the Russian Revolution, before things got too Orwellian (see 1984 for more on that).
We is a satire not so much on Marxism as on the madness of trying to plan the perfect society. In the OneState (any parallels come to mind?), there is no love, no music, no fun, no individuality. How can that possibly last, you ask? Well, pretty soon, things start to fall apart.