Irene is a meticulous 1940s homemaker living in a Sutton Place apartment in Manhattan. She relies on her maid, Emma, for childcare and housekeeping, which gives her extended periods of leisure time. Initially uncritical and sheltered, her perspective shifts when her husband purchases a new, bulky radio that visually clashes with her carefully curated living room decor.

Jim is a typical 1940s breadwinner who maintains a youthful appearance and an intentionally naïve demeanor. He works to support his family's comfortable Manhattan lifestyle and shares his wife's concealed passion for classical music. He values a stable, happy household and quickly buys a replacement radio when their old set breaks down, preferring to keep financial concerns to himself.

Emma is the domestic servant employed by the Westcotts. She handles childcare, meal preparation, and cleaning, operating quietly in the background of the apartment. Her labor affords Irene the luxury of extended leisure time and regular social outings.

Miss Armstrong is a nurse who tends to children in the Westcotts' apartment building. She speaks with a heavy English accent and adopts a comforting, theatrical manner when caring for her young wards. Irene knows her casually from their time spent at the local park.

Mr. Osborn is a tenant in the Westcotts' building. His domestic life is marked by hostility, as he engages in loud, aggressive altercations within his apartment that disrupt the surrounding domestic peace.

Mrs. Osborn resides in the same Sutton Place apartment complex as the Westcotts. She is trapped in a turbulent and volatile marriage, enduring abuse that broadcasts beyond the walls of her apartment.

Mrs. Fuller is another resident of the apartment complex. She hosts parties and large gatherings for other tenants, prominently purchasing liquor and managing catering for events to which she purposefully does not invite the Westcotts.