After his wife is murdered by street punks, a pacifistic New York City architect becomes a one-man vigilante squad, prowling the streets for would-be muggers after dark.
A mentally ill man in a small Texas town goes on a killing rampage and is fatally wounded by police. When doctors use an experimental serum to bring him back to life, the killer develops superhuman strength and the town sheriff must pursue him.
During a Space Shuttle mission a satellite rams a unidentified flying object. The UFO afterwards performs an emergency landing in the deserts of Arizona. However the White House denies it's existence because of the near presidential elections. The UFO is brought to the secret hangar 18 and the accident is claimed to incompetence of the astronauts Bancroff and Price. But the two fight against this and try to hunt down the UFO.
Steven Keats plays a Russian emigre who prides himself on the way he's molded himself into a real Yankee in the USA, though the world he lives in, New York's Lower East Side in the late 19th century, is almost exclusively populated by other Jewish immigrants. When his wife (Carol Kane) finally arrives in the New World, however, she has a lot of assimilating to do. This causes the tension which drives the movie along, though it maintains a fairly light atmosphere most of the time.