The BAFTA (and SAG, Golden Globe, Oscar) - worthy, and Olivier Award-Winner, Nicola Walker plays Hannah Stern intelligently, humanly. The second series develops all the characters without exception expertly and interestingly, and the stories are all absorbing. Shout-outs to Barry Atsma, Stephen Mangan, Annabel Scholey, Fiona Button and Deborah Findlay - who are all superb in their lead roles. Donna Air is also a revelation. This is an important drama about everything it means to be human nowadays. Very special indeed.