Caroline and Sonny admit their nearly three-year marriage has been tumultuous — with plenty of fighting and both sides alleging verbal and physical abuse. They say the situation got even worse last June, when the unthinkable happened: Sonny cheated on Caroline with her sister, Ashley, after a night of drinking. Caroline says she loves Sonny and wants things to work for the sake of their two young daughters. But after this betrayal, will she ever be able to trust him — or Ashley — again? Emotions run high when everyone sits down together on Dr. Phil’s stage. Ashley and Sonny give very different accounts of what happened that night. Ashley claims it was not consensual sex, but Sonny insists it was — who does Caroline believe? And what should she do now? Don’t miss Dr. Phil’s advice to the couple — can this marriage be saved, or has too much damage been done?