How to Get Ahead in Advertising

The boil appears as a physical manifestation of Bagley's mental breakdown and crisis of conscience about advertising ethics. When his professional life and moral values collide during the pimple-cream commercial shoot, his psychological stress manifests as a literal growth, a sentient boil that represents his inner cynicism about the industry.

The nervous breakdown during the commercial shoot sets the stage for the boil's emergence, as Bagley grapples with the truth behind manipulative advertising.

The boil symbolizes Bagley's suppressed cynical side and the dark reality behind the advertising industry's polished exterior. It voices the uncomfortable truths about consumerism that Bagley has been complicit in hiding, acting as a dark mirror to his professional persona.

The boil's cynical commentary directly responds to Bagley's growing ethical concerns about advertising manipulation.

During the hospital operation to remove the boil, it swells into a full replica of Bagley's head, including a distinctive moustache, while the surgeons are unaware of what's happening. They lance the boil-head thinking it's the growth, leaving the original Bagley head effectively reduced to a boil on his left shoulder. The switch goes completely unnoticed by the medical team.

The decision to remove the boil foreshadows this dramatic reversal, as Bagley seeks to eliminate his cynical side only to have it overtake him completely.

Julia leaves because the boil-headed Bagley who returns home is a completely different person, ruthless, cruel, and devoid of the moral conscience that originally defined him. His transformation represents not just a physical change but a complete moral capitulation to the cynical worldview the boil embodied. On what should be their wedding anniversary, she recognizes that the man she married is gone.

The film's tension between Bagley's ethical awakening and the boil's cynical influence builds toward this point of no return.

The moustache on the boil-head represents the persona Bagley projects to the world versus his true self. When the boil transforms into a full head, it emerges with a moustache that symbolizes the confident, manipulative advertising executive he suppressed during his moral crisis. The moustache becomes the visual marker of his transformed, ruthless identity.

This detail hints that the boil represents not just conscience but the darker aspects of Bagley's professional persona he had buried.

After the surgery, Bagley's original head becomes a small boil on his left shoulder while the boil-head, with its moustache, takes control of his body. The original head remains alive but reduced to a tiny growth, essentially trapped as a boil. The boil-head withers over time but doesn't die, leaving Bagley permanently split between his former self and his new ruthless persona.

This irreversible transformation underscores the film's bleak message about the cost of selling out.

The film ends with Bagley, now dominated by his boil-headed persona, returning to the advertising industry more ruthless and successful than ever. His wife Julia has left him, and his original head remains as a small boil on his shoulder. The satire concludes with a hollow victory: professional triumph matched by complete personal emptiness, as the character has sacrificed his morality and relationships for career success.

The three-persona dynamic that emerges throughout the film culminates in this final state of moral corruption.

The original Bagley technically remains alive after the swap but is reduced to functioning only as a small boil on his left shoulder. He retains no control over the body and exists as a passive remnant of his former self. The film leaves this ambiguous, is it truly his consciousness trapped, or merely a physical leftover?, reinforcing the surreal, symbolic nature of the narrative.

The build-up to the surgery presents it as a chance for Bagley to reclaim himself, making the outcome a dark irony.

The film satirizes advertising by showing how the industry's moral compromises can literally transform a person, turning an ethical crisis into a cynical, ruthless operator willing to manipulate consumers without remorse. The boil represents the industry's corrosive effect on integrity, and Bagley's ultimate success in the field after shedding his conscience suggests that advertising rewards amorality.

The clash between Bagley's awakening conscience and the boil's cynicism establishes this satirical commentary from the start.

Bagley's three personas, the stressed executive, the raving lunatic from his breakdown, and the boil-headed third entity, represent the fractured state of his psyche. The stressed executive is his professional mask, the lunatic is his suppressed instability, and the boil-head embodies the cynical truth-telling he cannot admit to himself. Their conflict drives the narrative and illustrates how the advertising world fragments a person's identity.

Each persona surfaces at different points throughout the film, building toward their final configuration.