Marc Oliver directs and costars with Ruby Quarton in an intense two-character play, Oleanna, opening Saturday. 
Written by David Mamet, the play dramatizes a power struggle between a university professor and one of his female students who accuses him of sexual exploitation and, by doing so, spoils his chances of being awarded tenure. 
As in many of these types of conflict, it&rsquo;s a case of &lsquo;he said, she said&rsquo; and sorting out the truth.