after winning a battle against Scottish rebels, Macbeth and his friend Banquo meet three witches with terrible plans, they claim that Macbeth will be king and Banquo's descendants will be too.
Macbeth's wife is more surprised and anxious than he is to become king and queen, so she pressures him to kill the king as soon as he comes to the castle.
The night while the king slept, Macbeth enters his room and, using the dagger of one of the servants, kills him.
the next day, when trying to wake up the king, all discover that he was murdered and panic, after that they find the dagger between the clothes of one of the servants bathed in blood as well as the clothes.
thereafter, macbeth kills the servant claiming revenge for the king, and becomes king. Lady macbeth also begins to press macbeth to kill his friend Banquo and his son, since, according to the profession of the 3 witches the son and his descendants would be kings.
Macbeth is bad at thinking about killing Banquo, hallucinates and has visions but after a while decides to kill him and his son as soon as they come to the castle.