"Spiderhead" is a clinical, high-concept psychological thriller that succeeds by trapping the audience in a visually pristine yet morally decaying environment. Joseph Kosinski directs with a sharp eye for modern aesthetics, transforming a remote, brutalist penitentiary into a vibrant laboratory where the horrors are masked by upbeat synth-pop and state-of-the-art design. The film avoids the typical tropes of prison dramas, opting instead for a colorful, drug-induced haze that makes the underlying ethical violations feel even more disturbing. Chris Hemsworth delivers a career-best performance a...