An architect loses his secretary (who he's secretly in love with) to a young good looking man. Wanting revenge on the couple he offers them a huge mansion complete with a beautiful swimming pool as a gift. It turn out that inside the pool is a prehistoric furry tentacled monster. The architect encountered this monster years ago in a small watering hole and built the swimming pool over the hole to destroy the couple. Unfortunately for him the monster also makes him a victim.
A lonely little horticulturist (who's constantly bullied by his hulking wife), finds a way to give life to a vine with a special spray. He can make the vine display both love and hate. He makes the vine hate and traps his wife in the greenhouse where she is strangled to death. Alone with his vine, he uses his spray to make the plant love. The vine hugs him but hugs him so tightly it kills him.