Two Scotland Yard detectives investigate the murder of a young woman of mixed race who had been passing for white. As they interview a spate of suspects -- including the girl's white boyfriend and his disapproving parents -- the detectives wade through a stubbornly entrenched sludge of racism and bigotry.

Henry Jekyll was always the outsider, a bungling and awkward buffoon, relegated to waiting for his invitation to participate in life that never arrived: until he discovers a medical formula developed by a dead uncle, which claimed to turn 'a man of timid disposition into a bold, fearless dragon'. Taking a draught of the elixir Henry is transformed into suave, sophisticated and highly desirable Teddy Hyde. Armed with his new persona, Teddy is ready to face the world; but is Henry ready for the consequences?

Naive Stanley Windrush returns from the war, his mind set on a successful career in business. Much to his own dismay, he soon finds he has to start from the bottom and work his way up, and also that the management as well as the trade union use him as a tool in their fight for power.