At the beginning of the story, Odin tells us that in the time before there was nothing in the current universe, everything was dark, and in that darkness, a tribe called Dark Elves lived in darkness. After that, after light was created and other creatures were created, the Dark Elf Prince tried to return the universe to darkness, but Odin's father Bor stopped him. The substance called Aether, which was used as a weapon by the Dark Elf (Malekith), was hidden in a place where no one could find it because it could not be destroyed. Actress Natalie Portman accidentally discovered this while trying to get in touch with Thor. (It is said that all the worlds fall into a row once in 5000 years and connect with each other. At that time, Malekith tries to destroy the suns of all the worlds.) At the time of such connection, the princess accidentally lands on a planet that hides the Aether, and the Aether enters her body, and Malekith senses the power of the Aether. You have to see and feel the pictures to be saved.