possessed
1. [ adjective ] influenced or controlled by a powerful force such as a strong emotion
Synonyms: obsessed
Examples:

"by love possessed"

Related terms: controlled
2. [ adjective ] in a murderous frenzy as if possessed by a demon
Synonyms: amok berserk demoniac demoniacal amuck
Examples:

"the soldier was completely amuck" "berserk with grief" "a berserk worker smashing windows"

Related terms: insane