Eighteen-year-old Cassie says that at 16, she became pregnant, and at seven months along, had a confrontation with her father, Todd, and tragically lost the baby. Todd denies the accusation, and claims what medical records and multiple sonograms prove: Cassie was never pregnant. Why does he believe his daughter would make up such an elaborate story? After months of not speaking, Cassie comes face to face with her family, who says this isn’t the first time they’ve caught her in a web of lies. How does Cassie explain her pregnancy? Can Dr.