Birgit's brother, Wolfgang, grows frustrated by the lax approach to the case, particularly as it pertains to a person of interest with a criminal past.
As Wolfgang and his associates delve deeper into Kurt-Werner Wichmann's life, they discover a pattern of dark, disturbing violence that spanned decades.
Despite discovering a key piece of evidence, the truth about Birgit's fate remains elusive, but Wolfgang and his team remain resolute in their pursuit.
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