It’s only on its second episode, but we’re already completely hooked on this identity-theft drama starri ng new Time Lord Jodie Whittaker as whistle-blowing nurse Cath Hardacre.

This week, Cath continues to bury herself in the identity of her best friend, senior doctor Ally Sutton, as she settles into her new life in Edinburgh.

But while Cath/Ally is proving a big hit with her new colleagues in the A&E department, things are getting very complicated thanks to her romance with charming colleague Dr Andy Brenner (Emun Elliott, The Paradise).

With her tangle of lies slowly starting to unravel, will Cath be able to stop the past from catching up with her and ruining her fresh start and potential romance?