Managing to locate his prison through the restaurant that supplied the dumplings, he tortures the warden (Oh Dal-su) for information, finding and playing tape recordings of his captor only revealing, listening to his captor, that Dae-su talked too much.
Managing to locate his prison through the restaurant that supplied the dumplings, he tortures the warden (Oh Dal-su) for information who simply points to a box of tape recordings of the captor. Playing the tapes only reveal, according to his captor, that Dae-su talked too much.