Disillusioned, dumped and unemployed on his twenty-fifth birthday, Sam Wilson, a high school mythology teacher and self-proclaimed loser, identifies with the attractive, desperate woman poised to jump off the Golden Gate Bridge. He overcomes his own fear to save her just as she morphs into a shrieking demon out for Sam's blood and tosses him from the bridge. Sam crashes into the frigid depths only to undergo what he believes is a near-death experience...