Just after a bad breakup, Charlie MacKenzie falls for lovely butcher Harriet Michaels and introduces her to his parents. But, as voracious consumers of sensational tabloids, his parents soon come to suspect that Harriet is actually a notorious serial killer -- "Mrs. X" -- wanted in connection with a string of bizarre honeymoon killings. Thinking his parents foolish, Charlie proposes to Harriet. But while on his honeymoon with her, he begins to fear they were right.
Eddie Dodd is a burnt out former civil rights lawyer who now specializes in defending drug dealers. Roger Baron, newly graduated from law school, has followed Eddie's great cases and now wants to learn at his feet. With Roger's idealistic prodding, Eddie reluctantly takes on a case of a young Korean man who, according to his mother, has been in jail for eight years for a murder he didn't commit.
After separating from his wife, Leonard Parker (Cosby) quit the spy business and became a restaurateur. His wife refuses to speak with him, and his daughter, who changes her career more often than her clothes, has begun dating a man old enough to be Leonard's father! On top of it all, the government has asked him to come back and save the world again.
A scientific experiment unknowingly brings extraterrestrial life forms to the Earth through a laser beam. First is the cigar smoking drake Howard from the duck's planet. A few kids try to keep him from the greedy scientists and help him back to his planet. But then a much less friendly being arrives through the beam...