Brian, who has a contentious relationship with his ex-wife, Elizabeth, claims she conspired with his ex-girlfriends to make up false allegations so that Elizabeth could regain physical custody of their 14-year-old son.

TELL DR. PHIL YOUR STORY: Conflict so big it needs a Dr. Phil solution?

Teri, one of Brian’s ex-girlfriends and mother of his 5-year-old daughter, claims no one conspired against him -- but that he is a lying, manipulative stalker.

“It is a life of hell dealing with Brian,” Teri claims. “He’s manipulative. He’s a liar, has zero respect for women. Brian is a monster.”

WATCH: The Concerning Conversation A Father Had With His Teen Son About His Mother

Teri claims Brian is “brainwashing” their daughter against her. “Brian tells her she’s not supposed to love me,” Teri claims. “My daughter told me that Brian told her to take a knife and stab me in the eye.”

Teri also claims that Brian badmouths her and Elizabeth to the children. “One time, Brian accidentally pocket dialed and left a voicemail. It recorded Brian yelling, and screaming, and cussing at his son. Brian was yelling at him, saying that his mother doesn’t care about him,” she claims.

In the video above from Friday’s episode of Dr. Phil, hear what another of Brian’s ex-girlfriends says about his behavior. How does he respond to the accusations against him?

And on Friday, can Brian and Elizabeth put their differences aside to co-parent their child in peace? Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Do you need Dr. Phil to "get real" with someone?

14-Year-Old Shares What It’s Like To Be In The Middle Of A Custody Battle