Jack Smith: CEO of Smith industry. He is forty five years old. A man with a happy family. But he has a weakness which he developed recently. That is he can't live without sex. His wife is there for him but he can't feel content.

Emily Smith: Jack's wife, 35 years old. She is a loving wife and a loving mother.

Charlotte Brown: Emily's sister. Twenty years old. She is a innocent girl for the world, but in her mind she is a whore. Just waiting for her chance to fuck an old man.