How does a stonemason and his family from post-war Hamburg become a family of mass murderers in Tenerife? And how do they go from being a somewhat quiet and shy family to being the center of one of the most brutal mass murders in recent history? Dive into the story of the Alexander family, their sick pursuit of ultimate purity, their escape from the German authorities, and finally their role in a bloodbath; the likes of which has rarely been seen before.

From Podimo and Vespucci — this is The Darkness Vaults, released weekly on Wednesday.