Kotaku writes:
"Left 4 Dead is very much a zombie apocalypse game, you'll find no deeper meaning here, no Romero-esque political message.
The game opens on the game's four characters at ground zero two weeks after the rise of the zombies. Left 4 Dead will have a short introduction, created by the team behind the Team Fortress 2 cut-scenes, but that will be the only cut scene gamers will see in Left 4 Dead."