Hi sadirose,
Is this at the very beginning of the game? I remember this part only vaguely, here's what the walkthrough says:
Walk over to the dressing table, notice the locked drawer, and look behind the picture of the laughing man. Pull the lever to open the secret passageway, which is behind the clothes hanging on the rack near the wall. Go through the secret passageway and come out through the wardrobe of the women's dressing room.
Does that help?
