Instruct: Classify the given review into positive or negative sentiment.
Query: "I HEAR VOICES IN THE NIGHT, BUT I AM NOT GOING MAD!"

Charles Boyer and Ingrid Bergman star in this dazzling mystery about two newlyweds who move into the wife's family mansion. While at the house Paula (Bergman) fears she is going mad when she begins to imagine things. Such as the lights flickering and hearing voices in the middle of the night. Joseph Cotten co stars as a man after ten years digging up a file on the murder of Alice Alquist (Who was killed in that house). While seeing Paula nearly frightened to death at a concert he knows that she is not mad, she is being driven mad. If this macabe nightmare continues Paula could be placed in an insane asylum. A macabeish film that unlock hidden secrets of the mind. Starring Charles Boyer, Ingrid Bergman, Joseph Cotten and Dame May Whitty. Directed by George Cukor. 114 minutes.