Tae-suk (Jae Hee) has a beneficent scam. He breaks into empty houses and sets up shop: watering plants, hand-washing laundry, repairing a broken gadget. On one visit, Tae-suk enters a home and becomes absorbed in a photograph of a beautiful woman, unaware that this very woman is trailing him from room to room. He sees her only when, as he lies masturbating, she walks in. The two begin a silent dance of discovery, broken when her husband returns and beats her -- and continuing when Sun-hwa (Lee Seung-yeon), the woman, climbs on the back of Tae-suk's motorcycle and joins him in his peculiar way of life. What is 3-Iron trying to say -- or ask? Part of its entertainment lies in puzzling over that question. The frustration is that, one senses, writer/director Kim Ki-duk is not so sure himself. A dreamy mood movie with one protagonist who never speaks and another who utters three words, 3-Iron is at times deliciously sensual, creepily somnolent, whimsically spiritual, and disturbingly violent. But it is never quite coherent.