If he had been a victim, himself, with his older sister as his abuser in his parents' absence, it would make sense that he'd know exactly what to say during therapy sessions with other victims. Sam treated both of them for childhood trauma having to do with being sexually abused by their own family members, and this kind of secret would have perfectly explained why he was so adept at understanding and sympathizing with their stories. At first, nothing seemed amiss, even though Annalise and Bonnie ( Liza Weil) admitted the whole thing made a lot of sense.
After Vivian's ( Marsha Stephanie Blake) shocking accusation that Hannah and Sam had been lovers, Annalise ( Viola Davis) starting digging for evidence.
