Mary Shelley's novel Frankenstein tells the story of Victor Frankenstein and the monster he created. Frankenstein is consumed with the idea of bringing the dead back to life. He is able to create a body from stolen body parts and bring it to life. But when he does he is so frightened by what he has created he runs, leaving the monster behind.
The monster tracks Frankenstein down and in the process kills Frankenstein’s younger brother William. The monster demands that Frankenstein make him a companion. Initially Frankenstein agrees to do so but then changes his mind. The monster is enraged and promises that he will be with Frankenstein on his wedding night.
Frankenstein returns home to marry Elizabeth. It is clear that he is haunted by the creation of the monster, the murders the monster committed and his threat. Elizabeth wants to know what is upsetting Frankenstein but he does not want to frighten her. He promises to tell her what is bothering him after they are married.
He doesn’t get the chance to tell her though. The monster kills Elizabeth on their wedding night.