Utter garbage. I saw the first episode and hoped the second episode would be more credible - it wasn't. I switched off after 20 minutes.
I binge-watched 'Killing Eve', however.
I'm also watching Killing Eve, but week by week. I was trying to place where I'd seen the killer before, then I realised she was the girlfriend in Doctor Foster, who was also a little psychotic!
Strangers on ITV is pretty good so far as well, and it's a change having a thriller series set in Hong Kong.
With regards Bodyguard, I guess if you have a security / military background, then there would be things in it which you would see as stretching credibility, but allowing for some dramatic license, it was a bloody good political thriller, which had me on the edge of my seat several times throughout the series, and I don't say that very often about TV or films.