The theme of an alter ego is very importan in my thriller film. The main character has an alter ego. An alter-ego is a second self, a second personality or persona within a person, who is often oblivious to the persona's actions. It was coined in the early nineteenth century when dissociative identity disorder was first described by psychologists. A person with an alter-ego is said to lead a double life. There has been many stories and films over time that portreay the theme of an alter ego.
Dr Jekyll and Mr Hyde
The Nutty Professor