Okay here's a complete walkthrough of how to beat Crimson Room:
First, go to the desk and get the ring inside the yellow bowl.
Next, go under the desk, and get the tape.
Then, go to your left to the big blank red wall, and click right on the left where the wall meets the floor... then get the battery on the edge of the bed.
Now, go over to the bed and click and lift-up the pillow to snatch the small golden key.
After that, click the curtain ONCE and grab the thing (I forgot what it was) from the window sill.
Next, keep clicking the curtain rapidly until something falls (it's a ring)... get the ring.
Now, lift the pillow again at the bed, and click the crack where the mattress meets the wood, get the metal stick.
Then, open the two unlocked drawers and get the CD's and paper.
Next, use your two keys to open the locked drawers and pick up the cord and red box.
Then, drag the cord over to the stereo, and click it.
Next, click the CD holder thingy and grab the key when it opens.
Now, click the red box and enter the metal stick and two rings in the correct slots.
After that, enter the battery and tape... and click the white circle.
Then, watch the dude do his little dance, then after a while he'll point at a certain spot on the wall (DON'T CLICK YET) when the movie is over, click that spot he pointed to a bunch of times until a box in the wall appears.
Now, click the box in the wall and enter: "1994" and put the key in the slot.
After that, open it and get the screwdriver... click the door knob and it will bring you closer to it.
Finally, click right under the door knob (like, on its shadow sort-of) and then click the hole it leaves. Ta-da! You WIN!!!
All credit to me

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Happy now?