the inaccurate/ridiculous part is that he couldn't do what he did because every one of them had another agent(s) on them precisely to prevent such occurences. they spied on and controlled each other just like they did on citizens. other than that - great movie, and depiction of the strong influence such agencies had on personal lives (to make someone or destroy someone) is accurate.
My understanding was the only reason what he did worked was because the whole thing was winding down. 2 years prior and things wouldn't have worked out so well at all.
There were thaw periods around the countries of the block and agencies sometimes tended to chill out a bit with their activites, but on the other hand on Berlin's memorials you can find people whose deaths are dated even just a few months before the falling of the wall, so I don't know, to be honest.
Slavoj Žižek, reviewing the film for In These Times, criticized the film's perceived softpedaling of the oppressiveness of the German Democratic Republic, as well as structure of the playwright's character, which he thought was not very likely under a hard communist regime.[23] Anna Funder, the author of the book Stasiland, in a review for The Guardian called The Lives of Others a "superb film" despite not being true to reality. She claims that it was not possible for a Stasi operative to have hidden information from superiors because Stasi employees themselves were watched and almost always operated in teams
the inaccurate/ridiculous part is that he couldn't do what he did because every one of them had another agent(s) on them precisely to prevent such occurences. they spied on and controlled each other just like they did on citizens. other than that - great movie, and depiction of the strong influence such agencies had on personal lives (to make someone or destroy someone) is accurate.
you can also check out http://en.wikipedia.org/wiki/Barbara_%282012_film%29 with a bit similar theme.