Guy's you've hit the nail on the head: The psycho-killer story is but a metaphore (hopefully!). By the way, "Stein um Stein" is taken from a German nursery rhyme: "Stein um Stein, Stein um Stein... Das Häsuchen wird bald fertig sein." = "Stone by stone, stone by stone. The small house will be finished soon." That's typically Rammstein, taking some innocent element out of context and build it into their morbid world...
Guy's you've hit the nail on the head: The psycho-killer story is but a metaphore (hopefully!). By the way, "Stein um Stein" is taken from a German nursery rhyme: "Stein um Stein, Stein um Stein... Das Häsuchen wird bald fertig sein." = "Stone by stone, stone by stone. The small house will be finished soon." That's typically Rammstein, taking some innocent element out of context and build it into their morbid world...