WHAT IS IT with Austria in general and Austrian dads in particular? Under the international files we note that a debauched Austrian dad is under investigation for repeatedly raping his two mentally-disabled daughters in a tiny kitchen where they were kept captive for 41 years. The unnamed 80-year-old monster is bringing up chilling reminders of sicko Josef Fritzl, left. Cops in Sound of Music land say the women had only a wooden bench for a bed. The sex abuse continued from 1970 to this past May.