On March 31, 1922, a family of five along with their housemaid were brutally murdered at Hinterkaifeck, Bavaria. No money was stolen, and the assailant lived inside the dead family's home for days, carrying out routine farm work after the horrific act before disappearing with barely a trace. Almost a hundred years later and the case remains unsolved, but is it really a case that is lost in time? Your macabre muse opens up on the tragedy that had befallen the Grubers and the Gabriels, along with theories as to who the perpetrator is.