The Archdiocese of New York is accusing its insurance company of waging a "shadow campaign" against the church by moonlighting as a sex abuse victims' rights group.

Millionaire financier Howard Rubin allegedly beat a woman so savagely in his Manhattan "sex dungeon" that her breast implant "flipped" -- so he advised her to get a sturdier silicone replacement, according to sick new details in the stomach-turning case.