The Blue Door

You turn towards the blue door. Then you open it slowly, cautious of any other "surprises" that may lie in wait for you. "Huh?" You open the door. "It's a broom closet." you say. "Man, here I am, afraid of a broom stick."
"I swear, Mac, you'd lose your head if it wasn't fastened to your scrawny l'il neck."
You turn suddenly, as you hear a voice in the distance.
"Ahh, gimme a break, Mako'Va, I forgot it, alright?!"
You turn back to the blue door.
"I just left it on the table in the other room."
The door to the large room opens, and the two men enter.
"See, here it is."
You listen through the closet door. "You're lucky it is. That's sensitive info, and i'm sure the Owner wouldn't be too thrilled to know you just set it down somewhere and lost it."
"Yeah, yeah." Mac sighs.
"It's almost time. Can you imagine it?"
"No, I can't."
"Believe it. Once the Boss initiates Project ZPB it'll all become a reality. I can just see it now. It'll all be ours." The two men leave the room.
You emerge from the closet, and glance around. 'Gone.' you think. 'Along with that file. I wonder what was in it. It sure sounded important. But what's Project ZPB?' You walk over to the red door, which was carelessly left open.

Enter the Red Door.