Deranged
Deranged may refer to psychosis, a generic psychiatric term for a mental state often described as involving a "loss of contact with reality".
Deranged may also refer to: 9d
In films:

Deranged (1974 film), a 1974 American horror film
Deranged (1987 film), a 1987 American Horror B Movie film
Deranged (2012 film), a 2012 South Korean science fiction, horror and thriller film
Idaho Transfer, a 1973 American film also known under its UK video title of DerangedIn music:

Deranged (band), a Swedish death metal band formed in 1991
Deranged Records, a Canadian punk record labelIn television:

Deranged (TV series), a television series shown on the Investigation Discovery networkOther uses:

Deranged, a type of drainage system (geomorphology)
Ibrahim of the Ottoman Empire (1615–1648), Ottoman Sultan called Ibrahim the Deranged
Derangement, in combinatorial mathematics, a permutation of the elements of a set in which none of the elements appear in their original position