There were so many ridiculous plot holes. Like why would a lecturer at Cambridge University try and confront a student over a cheating incident, without following a strict process? As if Adam would be stupid enough to not trust his wife, but believe everything a 20 year old girl would say. And after receiving the photo on the phone she was incredibly calm. It just didn't ring true, none of it. I wish they'd written it properly and made it more convincing. It's a real shame. Superb cast.