You're going to have walk past a man sitting on a chair; middle through, he'll jump you, so move the mouse to shake him off. Keep going. Hug the wall at the collapsed floor segment, then jump across. The stairs up will lay open before you.Before you go up, though, grab a document folder from the nearby cell. There's nothing else beside it. On the next floor, turn right immediately to find a battery in a cell, or turn left to move the plot. As you follow the main corridor, one of the inmates will leave his cell and start hitting you if you're close. Keep going until you have to hug the wall again. If your pursuer hasn't given up yet, he'll leave now.As soon as you take a few steps, another hyperactive lunatic will start choking your character through the bars. Move the mouse until he lets go, then proceed ahead.Eventually, your character will step into an abandoned solitary. To the left, there's a small hole that you can squeeze through. At the other side of the wall you'll stumble upon a man who won't do you any harm. Leave his cell and follow the corridor to the right. In the last cell on this level you'll find a battery, and in the previous one, another hole down. There, go down the stairs that's located on the same side as the light.