Macbeth is a very famous tragedy play written by William Shakespeare. Macbeth, the main character, is the Kings right-hand man. And one day he is told by 3 witches, that he will be the next king after the current one. So when he gets home he tells his wife this, and they are eager to be king and queen.
So after days, weeks, and months, they can't wait any longer, so one night Macbeth kills the king and blames the servants. When they become king and queen, he thought that the guilt will go away soon, but it didn't. He thought the crown will make him happy, but it didn't, and they became scared that they were going to be discovered, and they went mad.
Malcolm, the son of the previous king, started to suspect Macbeth, and when he found out that his father was murdered by him, he started to raise an army in England. Then he attacks Macbeth and kills him and took over the throne.
The story is pretty good, although if our Macbeth, I would wait till the king dies naturally and take over the throne.