28 Days Later is a post-apocalyptic horror film directed by Danny Boyle. Cillian Murphy stars as Jim, a man who wakes up from a coma to find London deserted and overrun by zombies. As he navigates through the desolate city, he encounters other survivors and together they try to find safety. The film is known for its intense atmosphere, fast-paced action, and thought-provoking themes. Murphy's performance as the determined and resourceful Jim adds depth to the character and contributes to the film's success.