After three largely slow paced episodes we get a speedy finale. Cath's lie is so very close to being exposed with the aftermath of the patient from the previous episode and sticking together with Bridget and ex-partner Carl on this way up to Edinburgh.
I think that this episode is perhaps the one which paints Cath in the best light. As an audience we can never feel comfortable with her deception but it's sort of become more acceptable as we've discovered how good a Doctor she can be. Andy tells her to essentially throw Bridget under the bus, let her take the blame and then Cath can carry on as Doctor Ally. But she's a good person and Bridget is her friend, despite the mistakes she has made, and Cath can't bring herself to do it. Instead she completely takes the blame.
As if this stress wasn't enough she's now got not one but two challenging medical procedures to perform. One is a repeat of the procedure from the night before and though initially in panic Cath eventually sorts it out. I was thinking that it's irrelevant that Cath isn't a real doctor here and this must be what real doctors go through when having to repeat a procedure that went so wrong the time before. Then her friend Mona is in the department and suffers a cardiac arrest, with poor Cath having to try and save her life. Again, so many doctors must struggle when people they know are in the hospital.
After all this Cath decides she can't take anymore so she picks up Molly and heads to leave forever. But then she bumps into Molly's dad Carl who can sense her turmoil. It's not entirely clear whether Cath actually means her promise that the three of them can go back to Sheffield and live together but either way it allows her to escape from danger. But soon Andy and Carl come to blows, fighting over Cath, and then poor Carl finds himself hit by a car.
The title of the series gets a new twist when it's Andy we have to trust rather than Cath. Did he kill Carl? It would be the only surefire way of ensuring Cath's secret was kept safe and therefore the relationship being kept safe too. I don't think he probably did go that far, he is a doctor after all, but the fact that Cath suspects him shows how shaky their relationship really is.
The series ends with Bridget taking long-term leave and Cath taking over as lead of the department. It's not how I thought the series would inevitably end with her being found out. As a viewer I feel conflicted as I do feel for Cath and in reality she makes a great doctor. But I can't help but feel that what she is doing is wrong and she really ought to be found out.
It's unclear whether there was ever any plans for a second series but it is certainly left open for one. With Whittaker now committed to Doctor Who this seems unlikely though I suppose she might just be able to squeeze in one episode to round things off. Frankly I think the ending was noncommittal as sooner or later she will be found out and I want to see how that happens.
All in all, I enjoyed the series. It perhaps could have condensed things down a little but good writing and great acting from the cast, especially Jodie Whittaker, it was a great little drama.