Angie says she’s convinced her husband of 23 years, Joe, is having an affair with Leslie, a 21-year-old who used to be friends with their daughter.

TELL DR. PHIL YOUR STORY: Relationship on the Rocks?
 
In the video above from Monday’s episode of Dr. Phil, Angie describes three incidents she claims prove that Joe cheated with Leslie -- one of which she says was audio recorded. 
 

“I know nothing about Leslie other than she’s a female and she’s in her 20s,” says Joe, who denies having an affair and says that he is in love with his wife.

WATCH: Woman Shows Video She Claims Is Proof Her Husband Is Cheating
 
Also, hear what happened when Angie and Joe confronted Leslie after they claim she bragged about having an affair with Joe.
 
On Monday, see what happens when Angie and Leslie come face-to-face on Dr. Phil’s stage. And on Tuesday, Angie asks Joe and Leslie to take a polygraph exam to prove they are not having an affair. Will they agree? And, hear why Dr. Phil says there could be a completely different explanation for Angie’s accusations. Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Conflict so Big it needs a Dr. Phil Solution?