Lacey claims her sister, Krystal, is spiraling out of control. She claims that Krystal uses drugs, drinks too much, and has threatened her and their parents.

“She’s up and down. It’s just surviving or screaming because she’s so unstable,” says Lacey. “You can almost guarantee that she’s going to bring drama wherever she goes.”

Krystal admits that she has had problems with substance abuse in the past but claims she’s no longer using drugs and is working on getting her life together.

Watch the video above to find out what happened the day Krystal was scheduled to tape with the Dr. Phil crew, then check here to see more from Thursday’s episode.

Dr. Phil airs weekdays. Check here for your local listing.

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