This thesis explores the psychological complexity of Connie Sumner, the main character in Adrian Lyne’s Unfaithful (2002), through the lens of Abraham Maslow’s Hierarchy of Needs theory. The study aims to understand the psychological motivations behind Connie’s actions and the factors contributing to her unhappy marriage. By employing a qualitative descriptive method, the research analyzes Connie’s behaviors, decisions, and emotional states as depicted in the film, focusing on how her physiological, safety, love and belonging, esteem, and self-actualization needs are expressed and fulfilled—or left unmet. Findings show that while Connie's basic needs such as physiological comfort and safety are well secured through her stable family life, she experiences a significant lack of emotional intimacy and personal validation. Her affair with Paul Martel is interpreted as a response to unfulfilled needs of love, belonging, and self-worth. However, the relationship only offers temporary emotional satisfaction, ultimately leading to guilt, confusion, and the breakdown of her self-esteem. Moreover, Connie’s journey reveals her failure to reach self-actualization, as she remains emotionally conflicted and unable to fully confront the consequences of her actions. This study concludes that Connie’s personality is shaped by a struggle between societal roles and internal emotional needs. Maslow’s theory effectively illustrates how unmet psychological needs can lead to emotional turmoil, even when basic life requirements are satisfied. This thesis contributes to the broader understanding of character development and psychological motivation in film studies, particularly regarding female subjectivity and emotional complexity.