The monster blockbuster from Korea

On an isolated oil rig platform, Hae-jun works as the equipment manager for a small, but dedicated crew. The region of sea, called Sector 7 represents their last hope of finding oil. After an undersea expedition goes horribly wrong, other crew members begin to turn up dead; one by one, their bodies viciously multilated. What the few survivors soon discover is a transparent underwater creature they had encountered once before. The viral monster infiltrated the ship through the drilling pipe and has been feeding on the crew to survive. Hae-jun and her colleagues frantic fight for survival begins.