Redemption Impossible

In Vienna, a company called Immuno was once doing research on vaccines to combat HIV, hepatitis and influenza. But their test subjects were 40 chimpanzees, all imprisoned in tiny cages and without sunlight. For them, it was a torturous daily routine of anesthetisation and infection with viruses. When Immuno abandoned these experiments, the animals were left traumatised, disturbed and aggressive. But two women who once guarded their cells are now charged with their rehabilitation in a safari park. Can the apes truly heal from their past painful ordeals?