Chile, 1973. After her boyfriend is kidnapped for being a dissident who supported the former president, Lufthansa flight attendant Lena must infiltrate Colonia Dignidad. It's led by former Nazi, pedophile and rapist Paul Schäfer. Her boyfriend is interrogated and tortured but feigns severe mental deterioration to stay alive as she tries to find and free him.
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apparently his acting hits Simple Jack levels when he "feigns severe mental deterioration"