On the night of the full moon, a girl named Sophie turns into a bloodthirsty monster.
While on vacation, psychology professor Snape passes through a small town and meets Sophie in an old bookstore. Amazed by the girl's superhuman intelligence, the two hit it off and feel as if they have known each other forever.
Two stars converge, sending out a dazzling light.
But when the full moon rises, everything changes...
He yearns to possess Sophie, treating her as his most precious treasure. Innocent and naive, Sophie knows nothing of the world. She follows Snape to London, where he keeps her locked up in his home.
To her surprise, she quite enjoys herself, spending every day reading in his study.
He gives her tranquilizers, hoping to control her transformations. He makes his own locks and keys, intending to keep her by his side forever.
But he knows, too, that he will grow old day by day, until he leaves this world.
And she will remain forever young.
Sophie's adoptive father, Leon, arrives in a spaceship to take his daughter home. Looking at Snape, Leon's eyes flash with cold fury.
