In an elegant London mansion, a young couple finds themselves ensnared in an atmosphere of intrigue and manipulation. The story revolves around Paula, a talented singer who returns home after the death of her aunt, a famous opera singer. Shortly thereafter, her husband, Gregory, begins to display a disconcerting side: every time Paula attempts to address aspects of her life that connect her to her past, he interrupts with subtle comments that make her question her own sanity.
Gregory, masterfully portrayed by Charles Boyer, engages in a disturbing psychological game, constantly manipulating objects and the environment to make Paula believe she is losing her mind. The incessant power outages and whispered voices in the house create a tense and claustrophobic atmosphere, where the line between reality and perception blurs. Meanwhile, the detective investigating a series of mysterious events starts to suspect that there is more to the couple’s relationship and that Paula might be in danger.
With surprising twists and an oppressive atmosphere, the story weaves a web of distrust that ensnares the audience, prompting them to question the nature of love and control. The climax culminates in an intense confrontation that reveals deeply buried secrets, leaving Paula at a crossroads between liberation and despair in a world where the truth always seems to remain in the shadows.