A homebuilder who uses shoddy materials and unskilled labor gets his comeuppance when he builds a home for himself out of the wood from haunted trees. He tries and fails several times to drive the ghost out of the house, but stubbornly refuses to admit failure. He bankrupts himself when he tries to move the entire house away from the ghost not realizing that the house itself is the ghost.; As international tensions mount, an alien lands and demonstrates its power before leaving, promising to return with an army. The world powers set aside their differences to prepare to defend themselves, but the alien was a robot created by a scientist hoping to inspire this reaction.; A man falls in love with a middle-aged woman on vacation, but wants a younger wife. He convinces her to let a gypsy magician make her young again, but once she's young and pretty she leaves him for the young attractive gypsy.; A scientist's assistant is determined to find if his time machine that sends objects into the past or future. He steals some gold ingots from the office and steps into the ray, knowing that he can never return to the present. When his journey ends, Earth is so primitive that he is cut off from all humanity, and he realizes that he still doesn't know whether the machine sends things into the past or future since it could be either the dawn or the end of time.