What's the last name of the guy who leaves the party with Clarissa?
Bill Whitney seems to have it all.  His family is wealthy and he lives in a mansion in Beverly Hills, California.  He's popular at his high school, looks to be a shoo-in for class president, has a cute cheerleader girlfriend and owns a new Jeep Wrangler to drive around in.  Despite this, he tells his therapist that he does not trust or fit in with his high-society family. When his sister's ex-boyfriend Blanchard gives him a surreptitiously recorded tape of what sounds like his family engaged in a vile, murderous orgy, Bill begins to suspect that his feelings are justified.
Bill gives the tape to his therapist Dr. Cleveland to listen to.  When he comes back for his appointment, Dr. Cleveland plays the tape back for Bill.  The audio has now changed and now merely contains the sounds of his sister Jenny enjoying her coming out party.  Bill insists that what he'd heard before was real and calls Blanchard to get another copy.  When he arrives at their meeting place, Bill discovers an ambulance and police officers gathered around Blanchard's crashed van.  A body is placed into the back of the ambulance, but Bill is prevented from seeing its face.
Bill attends a party hosted by his upper-class classmate Ferguson.  There, Ferguson lasciviously confirms that the first audio tape Bill listened to—with the sounds of an orgy on it—was the real tape.  Angry and confused, he leaves the party with Clarissa, a beautiful girl he'd been admiring.  They have sex at her house and Bill meets Clarissa's bizarre, hair-loving mother.
Whitney