Benvolio, one of Romeo's cousins, decides to cheer up him by find some other pretty girls Romeo look at. Mercutio, Romeo's best friend, because he likes parties and even he thinks Romeo needs to move and get over this crap. They decide to crash a Capulet party, but only to because of the free food, booze and pretty ladies.
Meanwhile, Bossman Capulet is having a talk with a rich powerful guy names Paris (he's related to the Prince). Paris wants to marry Juliet, Bossman Capulet's daughter. Capulet is throwing a costume party and has invited all the nobles (except the Montagues).