Martin Gilmour is the novel’s primary narrator and a key protagonist. He is a round and dynamic character whose complex psychology is defined by a profound sense of grievance and a contradictory desire for both belonging and revenge. An art history lecturer from a working-class background educated on a scholarship, Martin is acutely aware of class distinctions and his outsider status within the elite world of the Fitzmaurice family. His defining trait is a cynical, obsessive resentment, particularly toward his former best friend, Ben Fitzmaurice. Martin frames his entire identity around this relationship, which he sees as a catastrophic betrayal. He confesses early on, “The only friend I ever possessed betrayed me and, for years, I wished for nothing so assiduously as Ben Fitzmaurice’s downfall” (5). This desire for revenge becomes his primary motivation, driving him to manipulate situations and ultimately leak the information that destroys Ben’s career.

Martin’s narration is characterized by intellectual superiority and withering contempt for those around him, yet this attitude masks deep-seated insecurity and a desperate, almost pathological need for acceptance by the very people he claims to despise. His self-awareness is sharp but weaponized; he knows he is “fundamentally repellent” but uses this knowledge as a shield against genuine emotional engagement.