The "mouse" Hamlet plans to "trap" is king Claudius because he believed that he was the murderer of his father and he desired to take revenge.
Hamlet is joking when he tells his uncle Claudius that the name of the play is "The Mouse-Trap" aiming to find out whether the ghost was telling the truth and Claudius killed his father.
Hamlet is a tragedy written by William Shakespeare between 1599 and 1602. The play is set in Denmark, and illustrates Prince Hamlet and his revenge against his uncle, Claudius.
