I'm with sarn on this one. We're talking about good r-scenes, don't invovle actor and actress, but the character played out itself.
Sawan Biang
Reason:
They explain the surrounding. How pra'ek drugged the servants, so when he attempt to catch na'ek no one can stop him or hear what he is going to do to her. He also cut out the electricity and water supply. The hide and seek, full of suspense, will she get away or not? She runs up the stairs and slips. She limps to her room and out of no where in darkness pra'ek standing in front of her, slaps her once and dragged her into the room...throw her on the bed, struggle for awhile before blacking out. The aftermath is also good, because finally someone almost caught pra'ek right after he rapes na'ek.