Rich Relations by David Henry Hwang

Keith is a prep school debate teacher on the run with Jill, his student and underage girlfriend. They arrive at the Los Angeles mansion of his father Hinson, an amusingly hopeless technophile who left the ministry to become a wealthy real estate baron. Long ago he was raised from the dead through the love of his sister Barbara -- but now Auntie Barbara is perched on the balcony, threatening suicide unless Keith marries her cable-addicted daughter (Keith's first cousin). Full of wit, magic, and ruined household appliances, Rich Relations explores the ties between wealth and love, modernity and eternity, sacrifice and resurrection.