A man hires a nurse to care for his ailing but nasty and shrewish sister. What he really intends to do, however, is to convince the nurse to join him in a plot to kill her.

Colonel Pete Moore (Glenn Ford) is commander of the Whitney Radar Test Group, which has been experiencing electrical difficulties aboard its aircraft. To ferret out the problem, he sends a four-man crew on Flight 412. Shortly into the test, the jet picks up three blips on radar, and subsequently, two fighters scramble and mysteriously disappear. At this point, Flight 412 is monitored and forced to land by Digger Control, a top-level, military intelligence group that debunks UFO information. The intrepid colonel, kept in the dark about his crew, decides to investigate the matter himself.

A group of drag-racing fanatics, members of a Los Angeles club, move into an old deserted mansion and set up shop, making it their headquarters. They hold a Halloween masked ball for the club's grand opening, and invite everyone to come dressed as their favorite monster! Oddly enough, the festivities turn sour when one of the bright youths discovers an impostor among them in the form of an honest-to-gosh live monster who's been hogging all the dances with the best-looking girls

Billy Coleman works hard and saves his earnings for two years to achieve his dream of buying two red-bone coonhound pups. He develops a new trust in life as he faces overwhelming challenges in adventure and tragedy roaming the river bottoms of Cherokee country with his dogs, Old Dan and Little Ann.