The authors wish to describe and discuss a patient suffering from a sub-acute organic psychiatric syndrome, who appeared to have visual hallucinations. One of us (F.F.) had been interested in the attempt of K. Conrad (1953a, b) to apply Gestalt Theory to the psychiatric syndromes due to coarse brain disease. When he heard of this case, he felt that the psychological approach of Conrad would explain the patient's unusual symptoms. The case was under the immediate care of Dr. A. Forrest and psychological testing had been carried out by Mr. E. Macpherson. The three authors decided that the case merited publication in view of its considerable clinical and theoretical interest.