Sidney wants to escape his and his family's meager existence by writing a sex novel that will make him famous. The problem is,its not as easy as he thought and finds it difficult to concentrate in the family's cramped flat.
According to the file of prison psychiatrist Dr. Sholto, Ellis is inside because he is dangerous and prone to violent attacks. However, after attempting to treat Ellis, he confides in the doctor that he is there because of a government plot.
Frank becomes an embarrassment to his daughter when he tries to be 'with it' and liberal minded with his young black lodger Ambrose, but Ambrose finds the situation amusing and becomes confidant and go between to all the family.