In the near future, mysterious symptoms spread among the crowd, and fear spreads in the air. The cause is unknown, but it is known that the infected will initially have bone mutations, grow fur or scales on their bodies, and their original human characteristics will gradually degenerate. The government is helpless and can only forcibly take in the infected who have become beasts. Francois is convinced that his beloved wife is still under that mutated face. No matter how far away she is transferred to the shelter, he will move with his adolescent son Amy. Amy, who tries to integrate into the new class, unexpectedly finds that her body has also undergone unspeakable changes...