Sherlock Holmes - Season 1 Episode 6

Tau: <a itemprop="url" title="1968" href="https://cinemastream.cdnweb.info/mi/year/1968"> 1968
Whenua: <a itemprop="url" title="Germany" href="https://cinemastream.cdnweb.info/mi/countries/DE"> Germany
Momo: <a rel="tag" itemprop="url" href="https://cinemastream.cdnweb.info/mi/genres/10759/action-adventure" class="tag" title="Action & Adventure">Action & Adventure , <a rel="tag" itemprop="url" href="https://cinemastream.cdnweb.info/mi/genres/80/crime" class="tag" title="Crime">Crime
Studio: <a itemprop="url" href="https://cinemastream.cdnweb.info/mi/network/1135/wdr-fernsehen">WDR Fernsehen
Kupu matua:
Kaiwhakahaere:
Maka: <a itemprop="url" href="https://cinemastream.cdnweb.info/mi/person/1308027/erich-schellow"> Erich Schellow , <a itemprop="url" href="https://cinemastream.cdnweb.info/mi/person/1275544/paul-edwin-roth"> Paul Edwin Roth

What is the sinister secret of the house with the copper beech-trees outside it?