in apparent suicides, a commonality noticed by reporter 'Scoop' Foley. Foley visits Savaard's house on a night when the surviving jurors—along with District Attorney Drake, Police Lieutenant Shane, and police surgeon Dr. Stoddard—have been asked to gather there, having been sent messages attributed to Judge Bowman. When Bowman arrives, he reveals that he received a telegram supposedly signed by Savaard's daughter Janet asking him to meet her there. As the guests attempt to deduce who summoned them to the location, Savaard enters the room. Inviting them to stay for dinner, he explains to his guests, who are stunned to see him alive, that he could kill all of them and be protected by the alibi of his being legally dead. Judge Bowman tries to leave the house but is fatally electrocuted when he attempts to open a grille separating the guests from the house's front doors. Savaard disappears, and the remaining guests realize that they are trapped in the house. Over an intercom, Savaard announces that each of them will be killed at fifteen-minute intervals. Kearney, the head juror, is killed when he answers a phone that thrusts a poison-tipped needle into his ear, piercing his brain. Savaard states that Ms. Crawford is next to die. Janet arrives at the house, and the trapped guests explain to her that her father is alive. Janet finds Savaard upstairs in his laboratory, and implores him to abandon his desire for revenge. Savaard reveals that he killed Lang after Lang threatened to expose his plan to kill those responsible for convicting him. Janet heads downstairs and, in spite of her father's pleas, purposefully touches the electrified grille, forcing Savaard to surrender. Using Savaard's artificial heart apparatus, Dr. Stoddard revives Janet. Savaard, to the dismay of Dr. Stoddard, destroys his invention with a gun, and dies. Cast Stanley Brown appears in an uncredited role as Bob Roberts. Production notes The fictional heart-and-lung-machine prop presented an idea that was strictly science fiction at the time, but later the central idea became reality as "open-heart surgery." Later renamed "on-pump" surgery owing to the development of microsurgery that does not require stopping the heart, "on pump" requires heart stoppage, then hook-up to the pump, then operating on the repairs, and then reconnecting and reviving the patient, exactly the basic theory presented by the film. Critical reception On review aggregator website Rotten Tomatoes, the film has an approval