Not what you expect in a heist film, but here is the point.
Its a dreary office where everyone seems to be very conscientious.
He counts the money as he takes it.

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The security camera catches him in the act.
That is part of the plan.
Based on his researches into sentencing, he reckons on serving a bit over three years.

After that, life will start afresh.
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Roman is stunned when Moran approaches him.
Their intimacy extends no further than an occasional beer after work.
There should be a gun pulled or a police chase.
Moran serves his time in prison, where he suddenly discovers a love of modern poetry.
Will they find him out?
As are the thieves, neither of whom ultimately is interested in money.
They dont want to buy boats or live large in the fleshpots of Rio.
They are just unfulfilled, somewhat dull men in early middle age who want to buy new lives.
Which they do though, again, not in the way you might expect.