The Daywalker known as "Blade" - a half-vampire, half-mortal man - becomes the protector of humanity against an underground army of vampires.
Three detectives in the corrupt and brutal L.A. police force of the 1950s use differing methods to uncover a conspiracy behind the shotgun slayings of the patrons at an all-night diner.
Ambitious television reporter Tim O'Hara stumbles upon a martian whose spaceship has accidentally crashed on Earth. Thinking this is his ticket to a Pulitzer Prize, Tim makes plans to expose the martian, who, posing as Tim's Uncle Martin, takes human form and has plans of his own. In fact, all of Tim's efforts to divulge the truth are systematically thwarted by the resourceful alien, who ultimately recruits Tim to help him repair his ship for a return to Mars.
