First three seasons were superb. Should have stopped there. Nonetheless, the casting, acting, writing and production design were excellent. I will likely watch the first three seasons again. It was so refreshing to see portrayed the life of a young female doctor who sought a life of service to the poor, ambition for herself and her clinic and also wanted love and sexual fulfillment. Jemma Redgrave was outstanding in the lead role. As were the actors who played her father, the Scottish doctor and the nurse. Great series! Search for it in Britbox and Amazon Prime (I think).