Hit the flag to start. An intro screen will play. Wait for it to end and a continue button will show up. Follow the prompt to start and be ready to play. I will only give this little bit of instructions on how to play. The rest will be for you to learn by trial and error. The "F" button on the keyboard will activate your flash light. This only has use on one of them and be careful as to when you use it. To open the cameras, click the monitor. Under the desk is a crank. Click and hold that to charge your doors. Other than that, the rest is easy to figure out.
Sorry for how long this took. I know it's not that great and it needs more work, but I just want to finish. I may come back later and add a few things but for the most part its done. Unlike the last game, the two characters that move around have more of a set path so they wont just teleport, room to room.