Gaslight is a 9-episode Swedish psychological drama that centers on Nora (Julia Heveus), a young woman whose future plans are suddenly derailed. In the midst of this turmoil, she encounters Erik (Ivar Forsling), a charming man with whom she falls head over heels in love. What initially begins as a passionate, rosy romance rapidly devolves into an insidious and destructive relationship. As Erik gradually isolates Nora from her friends, manipulates her perceptions, and exerts psychological control over her life, Nora finds herself trapped in a terrifying spiral of domestic abuse and gaslighting, where her sense of reality and ultimate survival are put at risk.