Psychiatric hospitals, state institutions, and long-term forensic facilities are often imagined as places of healing — sanctuaries where the mentally ill receive care, rehabilitation, and a path toward reintegration. But beneath this ideal lies a more complex, often unsettling reality. These institutions can also serve as crucibles where the most dangerous minds — psychopaths, sociopaths, the criminally insane, and individuals with paraphilic disorders — interact, influence, and sometimes evolve together. In environments where nearly 70% of residents have prior incarceration histories, the line between treatment and containment blurs. The question arises: do individuals leave these institutions more socially entangled with antisocial peers than when they entered?