The Millionaires by Brad Meltzer

Two working-class brothers employed at an elite private bank spot an apparently abandoned multimillion-dollar account and decide to take it, imagining a victimless crime. Their plan detonates a relentless manhunt by federal agents and the bank’s ruthless fixers, leaving them framed for murder and forced on the run. As they scramble to protect their family and clear their names, they uncover a labyrinthine conspiracy woven through secret accounts and the ultra-rich, where every ally may be a trap and trust could be fatal.

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