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.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.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.