In “Nightmare” (2023), a Norwegian horror thriller mystery drama film, the line between dreams and reality blurs for a young woman haunted by chilling nightmares. As she struggles to discern truth from illusion, disturbing events from her dreams begin to manifest in her waking life, threatening her sanity and safety. With each terrifying encounter, she delves deeper into the mystery behind these nightmares, uncovering a dark secret that links her past to a sinister present reality. As the boundaries between her subconscious fears and tangible horrors dissolve, she must confront the terrifying truth before she becomes consumed by the darkness that lurks within her own mind.