Elinor (Daisy Edgar-Jones) and Marianne (Esmé Creed-Miles) Dashwood are young, beautiful and well-off young women for whom the only thing missing for happiness is love, as is often the case at their age. Their prospects take a drastic turn for the worse when, following their father’s death, their financial security is no longer guaranteed. From the comfort of their spacious family estate – which has been inherited by their father’s son from a previous marriage – they move, together with their mother (Caitríona Balfe), to much more modest circumstances in a small country cottage that seems to be standing only by sheer force of will. More than the loss of her family home, however, Elinor regrets that, as a result of the move, she is also leaving behind the charismatic Edward Ferrars (George MacKay), a relative of the new owners. This state of mind troubles her deeply, not least because she prides herself on her rational approach to the world, including matters of the heart. Her sister Marianne is cut from a completely different cloth; with her heart on her sleeve, she is ready to give herself to anyone who will take it. The lucky one is the charming John Willoughby (Frank Dillane). Although her older, more sensible sister advises caution, Marianne throws herself headlong into love. Is it reason or emotion that guarantees a person’s happiness in life? That is something they will both have to discover for themselves.