The Man Upstairs

Peter Watson is troubled with pain and an inability to sleep. He tries to light the gas-fire and seeks help from another lodger, artist Nicholas, who is spending the night with his model, and is reluctant to be disturbed. Another neighbor, Pollen, tries to be helpful, but is accidentally hit by Watson. Frightened and angry, Pollen calls for police help. The others in the boarding house are awake by this time, and Mrs. Barnes tries to help the mentally confused Watson, but he turns her away. The police clash with Sanderson, a welfare worker who thinks he can take the gun-toting Watson without complications, but when a police sergeant is injured, Police Inspector Thompson is determined to take Watson by force if necessary.