The story centers on James Adolphus Macartney, a prosperous and impeccably groomed London solicitor whose primary philosophy is to appear successful and completely unshakeable without visible effort. His wife, Lucy, married him as a young girl, virtually bluffed into the union by his icy manner, imposing eyeglass, and sardonic smile. Over more than a decade of marriage, they have settled into a polite, emotionally distant routine, living more like quiet neighbors than passionate partners in their Onslow Square home, anchored chiefly by their devotion to their sharp-witted son, Lancelot. The plot shifts into motion when Macartney orchestrates a small dinner party to introduce a wealthy, adventurous acquaintance, Jimmy Urquhart, to a financially strapped young poet, Francis Lingen, who happens to be infatuated with Lucy.
Urquhart is a magnetic, unconventional globetrotter with a penchant for tall tales and absolute self-confidence, completely contrasting with Macartney's rigid formalism. As Urquhart enters their orbit, bringing turbulent energy and unexpected romance, Lucy finds her carefully maintained emotional equilibrium challenged. The narrative develops through a series of subtle social encounters, country house visits, and escalating psychological tensions between the reserved husband and the dynamic outsider.
Urquhart's presence acts as a catalyst, forcing both James and Lucy to confront the true nature of their guarded union. Without resorting to melodrama, the author traces the delicate shifts in power and affection within the household, culminating in a subtle reawakening of domestic passion. The novel ultimately suggests that true intimacy requires dropping the masks of composure and embracing genuine vulnerability.