Unfortunately for him she marries someone else, Dr North is heartbroken but goes away to the countryside to bury himself in his work. Then a few years later Philippa comes back into his life, unhappy in marriage. Dr North hopes that she will finally come away with him but then we discover she has murdered her abusive partner and now needs Dr North's help to covering up her crime...
Overall this is a reasonable read though the overt emotionalism of the love-sick narrator (North) can be a bit off putting at times, especially early on.