Shayne is an admitted heroin addict and hoarder who says she hasn’t been clean since her sister, Kelsey, died of a drug overdose in 2011.

TELL DR. PHIL YOUR STORY: Life in crisis?

“Shayne has just been ripping my dad’s heart out,” claims her younger sister, Shelby. Shelby was 15 when Kelsey died and says her own drug use “took off” after that, though she says she’s been sober for six months.

WATCH: ‘I Just Want Somebody To Blame,’ Says Woman Of Sister’s Overdose And Death

“All my kids have struggled with drugs,” says Michael. He admits he enables his children, and says he feels responsible for their drug abuse. Michael and his wife, Mary, say they’re worried that they could lose Shayne to a drug overdose, just like they lost Kelsey.

While Dr. Phil was speaking with Shayne’s family during part one this two-part episode, producers reported that she had shut herself in a bathroom and was refusing to come out.

Will Shayne join her family and talk to Dr. Phil? Watch the conclusion of this two-part Dr. Phil airing Tuesday.

TELL DR. PHIL YOUR STORY: Family conflict creating drama?