"If you take out all the bullshit about the machines and the crappy prophecy, The Matrix was pretty close to the truth. Just think about it for awhile and you'll see how much sense it makes. And really, if you were trapped in a game and couldn't wake up, wouldn't you want to know the truth? So you could do something about it?"
" . . . Still haven't convinced you, huh? Here, tell you what: I'll give you my card. Whenever you feel like learning the real truth of this world, give me a call. I'll show you the ropes."
You come upon a ruined building in the back section of a city park (or other out of the way area of the city). The ruins are fairly overgrown. All that is really standing is a doorway and its frame. If you pass through the opened door, you travel to a different world. If the door closes, there may not be a doorway back to get you back.