Capgras symptom is characterized by the delusional belief that a person significant to the patient has been replaced by a 'double' or 'impostor'. Capgras symptom was discussed to be associated with violent behavior. We report here the cases of two male patients with schizophrenia paranoid type, where parricide was connected to Capgras delusion. It is important to emphasize that in our observed cases, non-adherence played an essential role in the development of violent behavior, parricide. Orv Hetil. 2019; 160(42): 1673-1676.