'So You Think You Can Dance' judge Mary Murphy's 9-year marriage was a seemingly never-ending nightmare, punctuated with repeated beatings, rapes, emotional abuse and a miscarriage, she tells Us Weekly in a bombshell-filled interview.

Murphy, 51, alleges her unnamed ex would physically abuse her and then demand sex. She claims he raped her for the first time about three months into their marriage.

"I was like, 'Are you kidding me?! We're fighting here!' He said, 'You're my wife, and you'll do what I tell you!' I pulled out a kitchen knife and screamed, 'You're going to have to stab me, because I'm not having sex with you!' He knocked it out of my hands, held me down and raped me."