Based on a book by Dr.Harold Greenwald: The Call Girl a Social and Psychoanalytic Study. This film tells the story of a girl (Anne Francis) who becomes a high priced call girl. She is exploited by her madam (Kay Medford) until she finds a tough yet caring therapist (Lloyd Nolan) and straightens herself out.

In New York City, twenty-four-year-old Robin "Bobbie" Williams runs panicked through darkened streets, until she finds a taxi. Noticing that she is injured, the driver introduces her to Dr. Mitchell, whose office is in her apartment building. Mitchell, a psychologist, offers to call a physician, but she refuses. Afterward, from her apartment, she phones the Beaumont, a restaurant frequented by her boyfriend, Larry Taylor, but he is with another woman, Lisa, and signals the maitre d' to say he has left. In the morning, Bobbie returns to Mitchell's office, wanting to talk, and says that she was abandoned at eight by her mother after the death of her father and reared by an unloving aunt and uncle. She claims to be a model, but when Mitchell continues to probe, she defiantly reveals that she is an expensive "call girl." After making an appointment with the doctor for later that day, Bobbie returns to her apartment and finds Larry waiting. She tells him that she knows about the other woman, but unrepentent, he explains that he was checking out Lisa as a favor to Rowena Claiborne, a procurer who refers "work" to them. When Bobbie realizes that Larry knew she was injured, yet did nothing to help her, she throws him out. That afternoon, Bobbie tells Mitchell that she was lonely until she met Larry at a party, and then relates what happened on the previous night: Larry drives her to her "job," promising to wait for her at the Beaumont. As she introduces herself to Mr. Shelton, a polite sexagenarian who seems to have a romantic streak, Larry goes to the Beaumont and greets a habitually inebriated Rowena and her paramour/business partner Swagger. As Shelton suavely invites Bobbie into his bedroom and begins to beat her with a cane, Rowena, who has arranged for Bobbie to meet Shelton, asks about her and says she does not usually use a "new girl" for "something this special." Rowena soon realizes that Larry did not tell Bobbie the full information about her client's sadistic tendencies. After escaping Shelton, Bobbie runs through the streets, while Larry listens to the inane chatter of young Lisa, who naïvely desires a hedonistic lifestyle. He takes her to his apartment, unaware that Bobbie sees them enter his building. In the present, when Bobbie ends her story, Mitchell asks if she had been happy with Larry before last night and she tells him they are planning to marry after she makes enough money for Larry's "big plans." That evening, Larry wins Bobbie back by promising to marry her soon. Bobbie almost ends her therapy with Mitchell, but then decides to have a few more sessions. Lying on the couch, she remembers how her miserly uncle resented caring for her and confesses her fantasy in which she is a princess who sentences her relatives to death. By immersing herself in fantasies, she says, she avoids thinking of her clients as real. Later, after Swagger arranges with a businessman to provide women for two major clients, Rowena prepares Bobbie and the first-timer Lisa to pretend to be "nice girls on the town." The job sours when Lisa has second thoughts about having sex, and her "date," the spoiled corporate scion Jason Franklin, Jr., becomes impatient and abusive. Bobbie, who has been paired with Al, tries to help her, but blurts out that it is Lisa's "first job." Both men are surprised to learn they have been set up with "professionals," and an indignant Jason grabs Lisa's purse and reads her identity card, which states that she is the daughter of a prominent Tennessee judge. Backing her toward a large window, he threatens to tell her father, as she, in shame, stumbles and falls out the hotel window to her death below. Although Swagger arranges for her death to be deemed "accidental," Larry accuses Bobbie of ruining their financial opportunities. He slaps her, but her fear of being alone prompts her to beg forgiveness. Giving her one "last chance," he orders that she turn over all the money she makes, not to question with whom he spends time and to do what she is told. Later she tells Mitchell that she must have been "crazy" to agree. Many sessions later, she realizes that, when Larry orders her about, it reminds her of a demanding grandmother, who seemed to care for her. Six months later, she recalls how she was sexually molested by a delivery man, who calmed her tears by promising her anything she wanted. Afterward, when Larry wants her to accept two jobs from Rowena, Bobbie refuses, as she is tired of feeling like two different people and being treated like merchandise. Larry tries to undermine her confidence by saying she should see a "headshrinker," but upon learning about her therapy, attempts to sabotage her treatment by insulting the doctor. Although Bobbie quits her job as a call girl and leaves Larry to find respectable employment, she still misses him. Rowena, who is unhappy with her similarly parasitical relationship with Swagger, warns Bobbie that Larry is worse than most men, and advises her to find a man who pays his own way. She also reveals that Larry had been simultaneously wooing Lisa. After finding a job as a file clerk, Bobbie has nightmares that her co-workers will uncover her past. Anxious about losing his source of income, Larry calls to make amends, but Bobbie rebuffs him. When a former client recognizes her at work, Bobbie is petrified that he will inform her colleagues. At Mitchell's suggestion, Bobbie studies art at night school and reluctantly agrees to go on a date with her teacher, Dan Bolton. After a delightful day in Central Park, Dan tries to kiss her, but she runs from him in confusion. Later, she laments to Mitchell that what he wanted was "dirty" and that she cannot "mix up" affection with sex. Mitchell tries to explain that, growing up without love as she did, she was able to function as a call girl because it validated her feelings of worthlessness, but that she and Dan share genuine affection. Despite Mitchell's warning that Larry's problem with masculinity manifests itself as a need to conquer, she returns to him, believing that she loves him, and later reports that he agreed to marry her. Anticipating nuptuals and a honeymoon, Bobbie becomes angry when Larry wants her to accept another job from Swagger. When he slaps her, Bobbie finally realizes that she is able to say no to him. Now confident that she can change, she leaves him permanently.