All six parts of the fourth series of the ITV drama set in southern India which follows young junior doctor Ruby Walker (Amrita Acharia) as she moves to India after becoming disillusioned with her life in the UK. There, she begins working at The Good Karma Hospital, under the tutelage of fellow English expat Dr Lydia Fonseca (Amanda Redman) who runs the institution. In this series, the hospital is forced to admit a highly contagious patient and Lydia and Greg (Neil Morrissey) plan to marry.