A twenty-year-old banker's son, from a large city in Hungary, suddenly grew sick two years ago, shortly after his father had suffered an attack of apoplexy and paralysis of the right side. He is spiritless, restless, not able to work, cannot use his right arm to write, is powerless to put his attention on anything, sleeps badly, etc. No treatment has any helpful effect. He is advised to seek distraction in Paris, but this, too, is of no avail. Then, after months of torture, he came to Zurich to Dr. Jung, who subjected him to analysis. At the second visit the patient behaved extremely mysteriously; he was much disturbed and appeared to be under the influence of an anxious dream, which he had dreamt that night. It required some effort to induce him to tell this dream, and it was only after he had convinced himself that no one could listen in the hall, that this story, not without emotion, came out. "I see in a vault a coffin in which my father lies, and I beside him; in vain I attempt to remove the lid, and in my horrible fear I awake." Some days were employed with the analysis of this dream. The explanation of it is: he has a very strong father-complex. From childhood up he has always been with his father, he has assumed the role of his father's wife, has cared for him, lived for him. He often reproached his mother for not making enough of the father, for not always cooking his favorite dish, for sometimes contradicting him, etc. He was always around with his father, worked at his office, served him in all sorts of ways, and anticipated all his wishes. Now, when the father suddenly became an invalid, the conflict arose. He identifies himself with the father. His father's invalidism becomes his own, he cannot think any more, he cannot write any more, and he sees death approaching. In the dream he is apparently dead, but his youth, his strength refuses to die, and this is translated in his attempts to get out of the coffin, which explains the fear.