Ruth Bailey, reeling from her work as a nurse during the Great War, is feeling listless, lonely and lacking purpose. With the war over, her work as a nurse is no longer needed, and so far, she has been lucky enough to meet men who have moved her, but has been unlucky enough to lose them in heart-breaking wartimes.

But when her sister needs someone to accompany her to Africa, to give her away on her wedding day, Ruth is only too happy to oblige. She's more than ready for adventure and self-discovery, and the Wangoni is calling.

Little does she know, another passenger aboard the Wangoni is on a similar mission, noted psychoanalyst C.G. Jung. When the pair's paths cross, it ignites a lifelong friendship that starts with a simple exploratory research safari through Africa.

Ruth Bailey, the English lady, saw the side of Jung that no academic was privy to. She met his children, his wife and his mistress, sticking with him until the very last day and learning much about herself, the human psyche and about her unforgettable Swiss friend.