A wealthy New York investment banking executive hides his alternate psychopathic ego from his co-workers and friends as he escalates deeper into his illogical, gratuitous fantasies.

New York City policeman John McClane (Bruce Willis) is visiting his estranged wife (Bonnie Bedelia) and two daughters on Christmas Eve. He joins her at a holiday party in the headquarters of the Japanese-owned business she works for. But the festivities are interrupted by a group of terrorists who take over the exclusive high-rise, and everyone in it. Very soon McClane realizes that there's no one to save the hostages -- but him.