Good but didn't completely work as a story, however...
One of the first scenes with Graham's character trying to walk back to his Ma's then he realises again that she died is powerhouse acting from Graham. Him and jodie Comer together is a great combination.
The bits that didn't work for me is the idea that it's portraying how care homes suffered during the onset of the crises when really it's a lot about trying to rescue Grahams character from the care home when his medication is changed.