The dream is unusually vivid: Bank employee Vince Grayson finds himself murdering a man in a sinister octagonal-shaped room lined with mirrors while a mysterious woman breaks into a safe. It is so vivid that Vince suspects it may have really happened. To get the dream off his mind, he goes on a picnic with some relatives. When a thunderstorm forces his party into a nearby mansion, Vince discovers that the bizarre room does exist, and it means nothing but trouble.
        
        
                
            Directed by:
                        Maxwell Shane                    
        
                
            Starring:
                        Paul Kelly,                        DeForest Kelley,                        Ann Doran,                        Kay Scott,                        Charles Victor,                        Robert Emmett Keane