By Breaking Celebrity News Staff

Nurses treating their mother visited the home of two sisters for a decade, apparently unaware that the women were allegedly being caged, raped and tortured by their father.

The revelation is shockingly similar to what occurred at the home of Phillip Garrido, who held kidnap victim Jaycee Dugard captive at his California home for 18 years, even while probation officers -- he was a registered sex offender -- regularly visited his property.

In the case of Gottfried Wagner, the 80-year-old Austrian man who has been arrested for raping and torturing his two mentally challenged daughters for a stunning 41 years, nurses visited the home regularly from 1998 to 2008 to care for Wagner's ailing wife Berta. Berta was also allegedly raped and brutalized by her husband.

Following Berta's death, yet another nurse, a specialist in disability issues, visited the home several times because one of the daughters was having trouble walking, reports The Sunday Herald.