An insane man first loves then grows to hate his neighbor, an old man whose penetrating gaze unnerves the insane man. He plans a perfect crime and executes it one night. The next day, two officers knock on the insane man's door, investigating a shriek heard in the night. The insane man invites them in, answers their questions, and submits to an examination of his eyes by one of the officers, who proclaims him innocent. The insane man invites them to stay and relax awhile, then regales them with his theories of crime. His heart begins to beat louder. Angles on the set are skewed to suggest the man's internal disarray.
演员：珍妮弗·琼斯 蒙哥马利·克利夫特 吉诺·塞尔维 理查德·贝梅尔 Gino Anglani Bill Barker Oscar Blando Mariolina Bovo 南多·布鲁诺 梅莫·卡罗泰努托 玛丽亚-皮娅·卡西利奥 Giovanni Corporale Claudio Del Pino Ciro Di Castro Pasquale Di Filippo Charles Fawcett 莉莉娅娜·杰拉切 恩里科·格洛里 克莱利娅·马塔尼亚 Amina Pirani Maggi 米莫·波利 Giu