Having contracted a deadly case of rheumatic fever a young wife and mother by the name of "Caroline Carmichael" (Donna Mills) is cryogenically frozen awaiting the right time when medical technology can bring her back to life. Eventually, 34 years later she is revived and returns to her wealthy husband "Thomas Carmichael" (Walter Pidgeon) and their two children "James Carmmichael" (Mike Farrell) and "Marcia Charmichael" (Vera Miles). But things are clearly not the same as when she last saw them. Thomas is much older and in very bad health. And while James has turned out to be a fine young man Marica has been mentally ill since her mother's incapacitation and Caroline's return seems to exasperate her condition. Two other characters have also become quite prominent within the family as well. The first is the nanny named "Sissy O'Neill" (Geraldine Page) who has looked after Thomas and the children since Caroline essentially passed away. The other person is a man by the name of "Joe Dolan" (Cliff Potts) who serves as Thomas' right-hand man and takes care of any problems that might occur. Even so, something is dreadfully wrong within the house and Caroline's reappearance seems to be the catalyst that produces the mayhem that follows. Anyway, rather than reveal the rest of the story and possibly spoil the movie for those who haven't seen it I will just say that this was more of a mystery-thriller than a science-fiction movie. Donna Mills looked great and performed quite well. Unfortunately, the movie itself was somewhat murky and the ending was also a bit confusing. Likewise, I would have preferred to see more of Vera Miles. That said I suppose it was a decent enough movie for the time spent and I rate it as about average.