House Of Horrors: Inside 'Monster Mom' Lisa Marie's Tragic Home Life With Tormented Twins

RadarOnline.com has exclusively learned about troubling new claims concerning Lisa Marie Presley and her estranged ex Michael Lockwood’s twins.

According to a source close to the couple, Presley created a “toxic” home life for 8-year-old Harper and Finley.

“She plays the girls back and forth against their dad,” blasted the source, explaining that "because one looks like Michael and one looks like her, she’ll tell the one ‘you’re just like your father."

Lockwood, continued the source, is desperate for “the girls to have a normal life since they’re so screwed up right now.”

As RadarOnline.com reported, Presley, 49, and 55-year-old Lockwood are locked in a bitter divorce battle and custody case over Harper and Finley, who are currently in their grandma Priscilla Presley’s care.

The warring exes’ tense split recently came to an explosive head after Presley alleged Lockwood had hundreds of “inappropriate” photos of minors on his computer. He slammed Presley in return, accusing her in court documents of having severe drug problems.

Despite the shocking allegations, the source said Presley can’t be believed and Lockwood and their daughters are the true victims in the end.

“She was horrible,” said the insider. “Those poor things. Mike’s first marriage, his first kids, and he waited so long. He’s just trying to get on with his life, and hopes that she gets it together for the girls’ sake.”

Lockwood and Presley have their next custody hearing on Mar. 1.