Struggling delivery man Alex Smith is murdered by his girlfriend Jenny Green and wealthy tycoon Luke Moss, who dump his body in a villa garden to die. A strange violet-glowing beetle grants him superpowers including beast control, invisibility and super speed. Adopting the alias X, he seeks vengeance. He enters a contract marriage with CEO Laura Wall, repeatedly foils Luke's plots, and finally slays the mutated Luke. He reveals his identity at a medal ceremony and leaves resolutely, leaving Laura consumed with regret.
