On July 28, 2015, Tara Lambert was arrested by police after giving $125 to a man she believed was hitman but was actually an undercover police officer. The former model admits she wanted to hire someone to hurt and “disable” her then husband’s ex, Kellie Cooke, mother to her stepchildren.

TELL DR. PHIL YOUR STORY: Are you involved in a story that has made the headlines?

Lambert claims Cooke was constantly dragging her then husband to court and so she says she wanted it to stop. Lambert enlisted the help of a former high school acquaintance, who was known as a “bad ass,” to call Cooke and threaten her.

WATCH: Did Former Model Convicted Of Hiring A Hitman Truly Want Her Best Friend Dead?

In the video above, Ginny, Lambert’s high school classmate, describes how she got involved with Lambert and the murder-for-hire plot. Hear what she said to Cooke on the phone call.

On Monday’s episode of Dr. Phil, see his exclusive interview with Lambert. Why does she say she arranged for a hit on Cooke? And, the victim, Kellie Cooke, and Ginny, sit down together for the first time in an exclusive interview to tell their stories. Plus, on Tuesday, see video of the undercover police sting in which Lambert was laughing as she requested Cooke be put through a wood chipper. Check here to see where you can watch.

Woman Claims Tara Lambert Told Her She ‘Wished She Could Kill’ Husband’s Ex And ‘Legally Get Away With It’