Ripley, the sole survivor of the Nostromo's deadly encounter with the monstrous Alien, returns to Earth after drifting through space in hypersleep for 57 years. Although her story is initially met with skepticism, she agrees to accompany a team of Colonial Marines back to LV-426.
Miles buys himself a state-of-the-art computer that starts expressing thoughts and emotions after having champagne spilled on it. Things start getting out of hand when both Miles and Edgar, the computer, fall in love with Madeline, an attractive neighbor.
Set in London between 1900 and 1925, the story follows Louisa Leyton/Trotter, the eponymous "Duchess", who works her way up from servant to renowned cook to proprietress of the upper-class Bentinck Hotel in Duke Street, St. James's.