As an excited Portwenn digests the news that Martin and Louisa are engaged, it's business as usual for the doctor. Beth Sawle's knee wound is not responding to the treatment he's prescribed, and when Martin visits the remote cottage where she lives with her strange sister Janet, he makes a disturbing discovery. Meanwhile, Bert's restaurant is in financial trouble, prompting son Al to take decisive action.
Elenco: Martin Clunes , Caroline Catz , Joe Absolom , Ian McNeice , Selina Cadell , Katherine Parkinson , Stephanie Cole , Angeline Ball , Roger Lloyd Pack , Jake Wood , Lia Williams , Stewart Wright , Chris O'Dowd , Amanda Abbington , Lucy Punch , Eileen Atkins , John Marquez , Jessica Ransom , Ashton Hinchliff , Louise Jameson .