The protagonist has a weird relationship with the couple Walter and Clarisse and the author's philosophical concerns are demonstrated by such characters as cousin Diotima.  
Part of this novel was lost in 1970 when two notebooks were stolen from their editor's car in Italy before he could transcribe them.  The protagonist has a weird relationship with the couple Walter and Clarisse and the author's philosophical concerns are demonstrated by such characters as cousin Diotima.  The protagonist's aesthetic lostness is referred to as the "Other Condition" and he has a perverse affinity with his sister, Agathe.  The sex murderer Moosbrugger haunts the entire novel which is placed in Vienna during preparations for the Emperor's 70th Jubilee in 1913.  Centering around the cynical Ulrich, FTP, name this Robert Musil tome.
Part of this novel was lost in 1970 when two notebooks were stolen from their editor's car in Italy before he could transcribe them.  
The Man Without Qualities or Der Mann Ohne Eigenschaften