Cora Dulz is a psychiatrist, married and in her mid-thirties, with a husband, a tax consultant, uninterested in anything except cutting articles about unusual deaths out of the newspapers. Professionally Cora's life has reached a state of crisis. Two of her patients have recently committed suicide. Now she has a new patient: Stanislaus Nagy, a young man who is obsessed with the dead opera singer Maria Callas and claims she appears to him in visions...