Michael, a wimpy young executive, is about to get pulverised by a jealous boyfriend in a bar when a handsome, mysterious stranger steps in and then disappears. Later that night, while jogging, Michael runs into the stranger on a pier, who introduces himself as Alex and the two go out to an underground club. Within a matter of days, Alex wheedles his way into Michael's life and turns it upside down. Michael doesn't realise that Alex is a dangerous sociopath until it's too late.