The video shows a person cutting open a fish with a knife. The person is seen holding the fish with one hand and using the knife with the other hand to cut through the fish's body. The fish appears to be fresh and is placed on a wooden cutting board. The person's movements are precise and careful as they cut through the fish's flesh. The knife used is sharp and efficient, making the cutting process smooth and quick. The person's hands are steady, and they seem to be experienced in handling fish. The video is shot in a well-lit environment, and the focus is on the person's hands and the fish being cut.