Plot hole: Andy is interrogated by the detective after the latest rape, as evidence in this one points to him. Problem is, the cop mentions that all the victims had visited Andy's office before their attacks. In real life, with information like that, he would have been a suspect and subject to questioning from the very first incident.
Factual error: Dr Hill says he's a cardiothoracic surgeon, so what's he doing operating on a woman that needs a gynaecologist surgeon? When doctors specialise, that's it, they do not swap and move in other fields, the only time this would happen is in an absolute emergency, as in if there was only one doctor on duty. But that wasn't the case here.