Shakespeare wastes no time in establishing the tragic nature of the story that is to come, writing in the opening lines of the feud between the families and how it will ultimately end only with the death of a beloved member of each family.
From forth the loins of these two foes
A pair of star-cross'd lovers take their life;
Whose misadventur'd piteous overthrows,
Doth with their death bury their parents' strife
Thus readers and/or viewers of the play are drawn immediately into the soap-opera like story that will unfold. The Capulets hate the Montagues, and vice versa, and in a moment of youthful indiscretion, or maybe better described as a prank of sorts, Romeo and his buddies put on masks and "crash" the Capulet party. There he meets, falls in love with, and fairly quickly marries Juliet Capulet. His timing, however, is unfortunate, as he returns from his private nuptials to find Tybalt, a Capulet cousin, fighting to the death with Mercutio, his best friend. Tybalt kills Mercutio, Romeo kills Tybalt, remembers all too late that he has killed his new wife's cousin, and runs to the local apothecary for help. This, then, is the beginning of the rising action that will lead to poor decision making on the part of the Friar, and a horrific ironic twist in which Juliet's faked death is not communicated to Romeo, who in a most un-fake way, kills himself; when the young bride wakes up and discovers that Romeo is newly dead, the play reaches its stunning climax as she plunges a dagger into her breast and ends it all.