This was a very good continuation, it maintained the quality of the opening part. Jessica Raine continues to impress as Tuppence. Alice Krige is wonderfully over the top as Opera Singer Rita Vandemeyer, her apartment is incredibly decorated, great production values.
Walliams is wonderfully uncomfortable masquerading as Drennan, it's either brilliantly or dreadfully done. When McKeown discovers he's a fraud they play out a really good scene, McKeown played by the strikingly handsome Samuel Oatley.
Raine is hilarious snooping about Rita's apartment, she did not look happy holding that cat. Vanemeyer is such a deplorable character, surely her imminent demise will be welcomed.
Walliams manages to inject some humour without sending it up, his drunken scenes and hangover are brilliantly played out.
Overall it's pretty good.