How Suicide, Murder and Mental Disorders Become Contagious: Twin Madness There are many examples of how strange psychological disorders can occur. One of them is shared psychotic personality disorder. Also known as: Twin insanity. Shared psychotic disorder is a psychological disorder that can happen to two individuals who are very close to each other. Let’s take a couple who loves each other. Because this union is considered extremely suitable for twin insanity. Let’s imagine that one of them has a psychological disorder for some reason. Let’s assume that the other one is naturally healthy. What is mentioned here is not an infectious disease… Strangely, the healthy individual begins to lose his sanity along with the other. ‘Folie a deux’, which we call twin madness, begins here. You may think that all people who have been married or lived together for many years should be caught up in this vortex. What is at stake here is not a dual situation that suddenly developed. One of the p...