It's a genuinely enjoyable film that I’d happily watch again and suggest to others. Although the premise might not seem groundbreaking, it comes across as quite inventive. The way isolation is employed creates a palpable sense of dread, allowing the movie to center on the fear of contagion rather than depicting a widespread zombie outbreak, which is common in those films. There's an interesting, complex metaphor present concerning Darwinism, showing how survival shifts from brute force to requiring intelligence. The filmmakers managed to create a complete and immersive experience despite the limited setting of a convenience store. The actors delivered impressive performances throughout the escalating sequence of events, contributing to a compelling narrative.

Source on TMDB