 When we have persecutory delusions, we believe that we are treated with hostility, and that harm is coming our way. When we have delusions of mirrored-self misidentification, we usually preserve the capacity to recognize images in the mirror as reflections, but do not recognize our own face reflected in the mirror. So, we come to think that there is a person in the mirror, a stranger who looks very much like we do. In either case, the delusion is resistant to counterevidence and can have pervasive effects on our lives. One of the differences is that persecutory delusions are polythematic whereas delusions of mirrored-self misidentification are monothematic.