Capgras delusion or Capgras syndrome is a disorder in which a person believes that his friend, spouse, parents, or other close family member has been replaced by an impostor who looks like them. Capgras delusion is classified as a delusional non-identification syndrome, which is a type of delusional belief that involves not recognizing people, places, or objects. It may be acute, temporary, or chronic. This delusion usually occurs in patients with paranoid schizophrenia and may appear in patients with brain injury and dementia. It often appears in individuals with neurological diseases, especially the elderly. It has also been known to occur in people with diabetes and those who suffer from migraine attacks. In isolated cases, Capgras delusion is temporary due to health reasons such as taking ketamine. The female to male ratio is 3:2. Here are two case reports that are examples of Capgras delusions in psychiatric settings. Mrs. D, a 74-year-old married homemaker, was recently discharged from a local hospital after her first visit to a psychiatric admission seeking a second opinion. Earlier this year, when she was admitted, she received a diagnosis of mania because she believed her husband had been replaced by another man. She refused to sleep with the impostor, locking her bedroom door at night. She asked her son for a gun and eventually fought with police officers on several occasions, who admitted her to the hospital. She sometimes believes her husband is her long-dead father. She can easily identify other family members but cannot identify her husband alone. Diane, a 28-year-old single woman, testified at a hospital program evaluation after her third admission for psychiatric illness in the previous five years. She was very shy and when she was 23 she was examined by a specialist and began to worry that the doctor had hurt her and she could not cope. The patient's condition might improve with some antipsychotic medications but she refused treatment at all. After eight months she began to have delusions where she thought that men could switch their personalities with either a good person or a bad person. They diagnosed her condition as falling within the category of Capgras delusion. Individual therapy is most appropriate for Capgras delusion patients. Patients with this delusion need constant care and verification of their health. Cognitive techniques include testing and using facts. Drugs, tranquilizers, etc. may be successful in treating them.