In Fair Verona, where we lay our scene. Civil blood makes civil hands unclean. From forth the fatal loins of these two foes, a pair of star-cross'd lovers take their life. And the continuance of their parents' rage, which but their children's end nought could remove.
Tybalt (from the Capulet) and Mercutio (from the Montague) fight for representing the predominant family.
As Tybalt killed Mercutio, Romeo comes in and fought Tybalt with the vengeance.
Romeo has killed Tybalt and as a result, he was exiled.
Let Romeo hence in haste, Else, when he is found, that hour is his last.
Meanwhile, Juliet (the lover of Romeo) had to marry Paris very soon but wanted to be with Romeo.
Juliet decided to drink the sleeping potion from the friar so that Juliet's family thinks that she is dead and send her to the catacombs. Juliet hopes to meet Romeo there.