扬子鳄的数量

A group of aliens has come to Earth to learn about its population, customs, etc. To avoid detection, they have taken on human form which gives them human emotions, physical needs etc. WITHOUT the understanding of what they mean or the inhibitions normally present in humans. Their leader takes the position of a college professor, their military expert as his sister, their intell...。An aged private detective searches for a family thought to be cannibals in the 20th century, descendants from the an old Scottish family from the 16th century.。