Masahiko Sakata

The lives of a bored suburban couple are changed forever when a seemingly nice old man gives their daughter a job at his fish store, and soon his gruesome hobbies are brought to light.

An ornithologist investigates reports of a monstrous new species of bird just as a teenage girl is gifted an amulet found on mysterious atoll. As the creatures begin to attack, an ancient guardian with a bond to the girl emerges.

In order to settle a business dispute, a mob leader murders one of his own teenage sons. The surviving son vows to avenge his brother's death, and organizes his own gang of teenage killers to destroy his father's organization.