Obsessed to Death (2022)

After her boyfriend, Austin, suddenly abandons her for a popular fitness instructor named Summer, Cassie becomes consumed by jealousy and insecurity. Hoping to win Austin back, she begins attending Summer’s classes and studying every detail of her seemingly perfect life. Cassie soon works her way into Summer’s world, pretending to be a friend while secretly trying to take her place. As admiration turns into dangerous obsession, Cassie’s revenge plan becomes increasingly violent, putting everyone around Summer at risk.