Colin approaches a zombie outbreak by remaining with a young man after he has become one of the infected. That change of viewpoint makes the living appear as sudden, confusing sources of movement and violence. The film does not need the zombie to understand his surroundings for the audience to infer what has been lost. Watch the difference between a body's surviving habits and the social meaning other people assign to it. Small traces of attachment can be affecting precisely because they do not restore an intact human narrator.