Tower of London

Ambitious Richard, Duke of Gloucester (Basil Rathbone), brother of King Edward IV (Ian Hunter), maneuvers to get the powerful John Wyatt (John Sutton) to France, then has his brother make him the Lord Protectorate for Edward's sons, the two young princes. Impatient that the ill Edward clings to life, Richard arranges his death, as well as that of his other brother, the Duke of Clarence (Vincent Price). With only the princes remaining, Richard's obsession to rule shows no sign of abating.