A semi-barbaric king created a game for justice and the people that were accused had to choose from two doors that looked the same. One of the doors had a lady behind it for the man to marry and the other door had a tiger behind it.
The king had a daughter who was known as the " princess ". She had fallen in love with the kings companion and he became angry when he found out so he put him in jail. The princess was upset. She felt her love was going to die for him or she was going to marry someone else. She secretly persuaded people to tell her who the woman was and it was someone she deeply hated.
As the king faced his companion when he bowed down to him, he quickly looked at the princess. He knew that she had known about the lady and the tiger so he asked her which one and she lifted her right hand pointing to right door.
The companion had went to the door on the right not knowing what was inside. He had only wanted the princess.
The question is which came out of the door? The lady or the tiger? I believe the tiger did because why would the prince send the lady if he is so in love with the princess.
The central idea/theme of The Lady or the Tiger is power of choice. The king had power over everyone involved in the story. His daughter and the prince made a choice to fall in love with each other and the king punished the prince for that.