On a starry night in Los Angeles, a wealthy young woman named Jean Courtland tries to jump in front of a moving train, but is saved by her boyfriend, oil geologist Elliott Carson. Later, at a restaurant, Elliott accuses John Triton, a middle-aged aquaintance of Jean, of trying to steal her fortune by foretelling her death. In his defense, John relates the following story: Twenty years earlier, while touring with a magic act with his fiancée Jenny and his best friend, Whitney Courtland, John discovers that he can actually foretell the future. Whitney uses John's ability to amass a small fortune for the trio through gambling and playing the stock market. While onstage one night, John foresees Jenny's death following the birth of their first child. Believing Jenny's marriage to Whitney will prevent her death, John advises Whitney to buy a piece of oil-filled Oklahoma land, and disappears. Back in the present, Jean tells Elliott that her mother died in childbirth, despite having avoided marriage to John. Returning to his story, John continues: Three months earlier, John, who moved to Bunker Hill in order to be closer to Jean and Whitney, has a vision of Whitney dying in an airplane crash and tells Jean, who has never met John. She warns her father too late, however, and he dies in an airplane crash in New Mexico. Although Elliott doubts the veracity of John's "visions," Jean, aware that her father and John were once best friends, goes to him in trust. Sadly, he tells her that she will die within the week, under the stars. Back in the present, as day breaks, Elliott takes Jean home to rest, then goes to the police, who tell him that Whitney's propeller shaft had been tampered with, which suggests that he was murdered. Meanwhile, Jean asks John to stay with her at the Courtland house, where he hopes to prevent her death. Also at the house are a group of oilmen who, before Whitney's death, were planning a merger with the Courtland oil interests, and are now in search of option papers. While in the house, John foresees his own death by gunfire, as well as details involving Jean's death: She is to die at eleven o'clock the following night, beneath the stars, following a sudden hot wind, the breaking of a vase, and a flower being crushed beneath a foot. She will also die near the feet of a lion after the words "There is no danger now" are spoken. On the night that John makes the predictions, someone tries to smother Jean with a pillow, and John is blamed. The following night, John is away from the house being interrogated by police psychologists. As Jean waits in terror for eleven o'clock to arrive, all of the details of John's vision begin to unfold. Minutes before eleven, the killer pushes the hands of the Courtland grandfather clock ahead so that when the hour chimes, Jean believes she has been spared and steps into the garden. As the killer speaks the words "There is no danger now," then begins to strangle Jean, John arrives and saves her, but is shot by the police, who think he is an accomplice to the murder. The assailant turns out to be one of the oilmen who opposed the Courtland merger. As John lies dead at his feet, Elliott, who now believes John sacrificed himself for Jean, retrieves a letter from John's pocket that foretells his own death during Jean's rescue.