Black Slurry on the Sole

Gyeongseok Industries, a stone-processing plant on the outskirts of Seoul. At 21:40, when the shutter opened again, the inside of the wet cutting room was awash with water and stone-dust paste, and the owner, Noh Gyeong-sik, was found dead beside the cutting machine. Four people had come and gone at the plant that day: the business partner who had been clashing with the owner over settling their shares, the administration manager who says she went out to the materials warehouse, the junior driver who tagged his card and left at 20:30, and the technician with fifteen years' experience who says he only ground marble in the basement trimming room. All four stated clearly where they had been, and their accounts hardly overlapped at all. All that is left is a wet floor and the shoes.