Here encapsulated in this movie are many strands from either horror literature (Day of the Triffids where a man wakes up in a hospital and finds no one on the streets and a load of crashed cars and buses),historical events (the Great Plague especially),more recent events (Aids) and one of the blights of modern society (road and other rages).And more disturbingly the laboratories who meddle with Nature) In the first 28 days there's non stop killing,panicking,screaming. If you can get past the fact that people are heard screaming as they fall from great heights (impossible because of oxygen displacement)or all the computers in full working order (who are the ISP staff?) to say nothing of the electricity supply which would have shut down with no one to maintain it) its a damn good film -and some of it was shot near Blackpool where I live!