FAQ

The creature in the movie was a by-product of bad Russian genetic engineering in their attempts to make a human fully adapted to marine life. They slipped marine-based mutagens into the drinks of the crew of the Leviathan which cost them their lives and the ship escaped the Baltic Sea. The Soviet government decided to send a destroyer to sink the Leviathan to try to stop the creature from spreading to anyone else. The creature itself is made up of several marine life forms and the most visible of its makeup is octopus, eel, lamprey, and viperfish. While strong and able to adapt to the harsh pressures of the deep ocean, the creature itself needs blood for nutrition in order to survive. The creature doesn't eat or kill any of its victims, but assimilated their bodies into a single entity which causes the creature to grow larger. Victims from the mutation process retain only their minds; their bodies and intelligence will become part of the monster itself.