Doris Day stars as Katherine 'Babe' Williams, the factory’s steadfast labor leader and chair of the Grievance Committee, at the Sleeptite Pajama Factory in Cedar Rapids, Iowa. The union is pressing for a seven-and-a-half-cent raise to bring workers in line with the industry standard, while the factory owner, Mr. Hasler (Ralph Dunn), resists the demand. Freshly hired as superintendent, John Raitt plays Sid Sorokin, a sharp and ambitious foreman-turned-manager who is determined to tighten operations and improve productivity, even as he finds himself drawn to Babe and the human side of factory life.
Sid’s push for efficiency runs into trouble fast. When a slow worker is shoved by Sid during a moment of impatience, the incident is reported to the Grievance Committee, and Babe is called to investigate. Sid doesn’t take the complaint seriously at first, but a spark of attraction quickly grows as he becomes smitten with Babe, who is professionally assessing the situation. Babe’s colleagues tease her about her changing demeanor, insisting she’s fallen for the new boss, a charge she resists while acknowledging the tension between management and labor. In their initial back-and-forth, Babe reassures the workers with lines like “I’m Not at All in Love,” signaling that she won’t let romance blur professional judgment even as her heart begins to lean toward Sid.
Meanwhile, Vernon 'Hinesie' Hines, Babe’s rival in the eyes of many workers and a jaded skeptic, wrestles with trust issues about his own girlfriend, Gladys Hotchkiss, Hasler’s right-hand secretary. To clear his doubts, Babe calls on Hinesie’s secretary, Mabel, to present him with scenarios that illustrate trust and patience, gently nudging him toward a healthier view of relationships and work. The couple dynamic deepens as Sid, still chasing Babe, asks her out, only to be met with a professional boundary—she insists their relationship stay on the job. Yet a shared moment at the annual picnic changes everything: Babe volunteers to have an apple knocked off her head in Hinesie’s knife-throwing act, a near-miss that becomes a catalyst for their budding romance, and Sid escorts her away for a quiet walk where they share a kiss and begin picturing a future together.
That night, Sid confesses his love for Babe with a heartwarming moment, while Babe worries about the clash of their roles—management and labor—and the impact of their romance on the union’s fight for workers’ rights. She commits to standing firm for the seven-and-a-half-cent raise, even as she admits the personal stakes are rising. Their mutual affection grows so strong that they affirm their love with a pair of hopeful numbers, including a declaration of unity: “There Once Was a Man.”
The union rallies its members to a broader tactic: a slowdown that tests the factory’s rhythms and production lines. Babe, resolved to defend the workers’ interests, orchestrates a deliberate disruption of machinery to demonstrate the seriousness of the situation, prompting Sid to remove her from her duties. Yet she continues to advocate for the workers from the floor, earning respect even from those who disagree with her stance. The tension between the need for order and the desire for a fair deal intensifies as the workers’ chorus grows louder with the call to fight back, underscored by the moodier mood of “Racing with the Clock” in reprise.
Sid, desperate to reconcile his personal and professional worlds, visits Babe at home to urge that their relationship might survive the upheaval—his admission that his ascent to the top came from bluffing as much as merit adds a layer of vulnerability to his character. Babe’s commitment remains unwavering, and she delivers a quiet, steadfast counterpoint to his ambition with a firm resolve to champion the union in the upcoming negotiations. The lovers’ dilemma deepens as they navigate the feelings that threaten both their romance and the possibility of a labor peace, all the while the chorus of the workers swells with the sounds of “Hey There” and its hopeful reprise.
To test his instincts, Sid invites Gladys to a nightspot where the action intensifies. In a moment of inebriated trust, Gladys lends Sid the key to the locked account book, while a jealous Hinesie grows increasingly paranoid and dangerous, chasing the two through the factory with knives. The danger skyrockets as Hinesie hurls blades past Sid and Gladys, revealing the volatile mix of personal jealousy and corporate pressures that define the era.
The crux comes when Sid uncovers a troubling pattern: Hasler has already added the seven-and-a-half-cent raise to production costs and has been pocketing the difference for the last six months. Sid confronts Hasler with the hard truth and warns that he will hand the incriminating account book to the board if the raise isn’t paid immediately. The factory’s fate—and Babe’s unyielding stand for workers’ rights—hangs in the balance as the two leaders face off in a dramatic clash of ethics and power.
At a pivotal union rally, confrontation gives way to triumph as Hasler agrees to the raise, provided there is no retroactive pay. The workers erupt in celebration, and Babe and Sid, who have weathered personal and professional storms, choose to reconcile. In the final image, the Sleeptite employees stage a pajama fashion show to celebrate their victory, with Babe and Sid now married and sharing a single set of pajamas—Babe wearing the top and Sid the bottoms—symbolizing a precarious, hopeful balance between love and labor in the new order.