Fred Fairly, a Junior Fellow of St Angelicus ('Angels'), a (fictional) Cambridge college, is a physicist whose research focuses on the exciting modern field of quantum theory. As Fred cycles along the Guestingley Road in the dark, an unlit farmer's cart pulls out of a gateway into his path, causing him to crash into a stranger - a young woman by the name of Daisy Saunders. Both are knocked unconscious, and are taken in by the wife of Professor Wrayburn who lives nearby. Noting that the young woman wears a wedding ring, she incorrectly assumes that the pair are husband and wife and she puts them into the same bed to recover. On coming round, Fred immediately falls in love with Daisy, but she leaves without giving an address and he has no way of locating her.