Ten strangers become stranded at a desert motel by a violent storm and quickly find themselves being murdered one by one. As the corpses pile up, the survivors begin to turn on one another, and as accusations fly, we discover that everyone in the motel, including the killer, is a single person suffering from multiple personality disorder. The person is undergoing a radical new therapy that allows the personalities to encounter each other as real entities in an illusionary world. © 2003 Columbia Pictures Industries, Inc. All Rights Reserved.