When Ariana Neumann was growing up, she didn't know much about her father's past.
Hans Neumann was a wealthy industrialist, a member of Venezuela's elite, who was always focused on the present. But sometimes, he woke screaming from nightmares.
When Hans died, he left behind a box of letters and documents, including family letters from concentration camps and his own false identity papers.
And that set Ariana on a journey to find the story of her family.
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