Anniyan

Lawyer Ambi ("Chiyaan" Vikram) earns the nickname "Rules" because of his obsession with compliance. But when his girlfriend Nandini (Sada) leaves him because of his obedient nature, Ambi decides it's time to change. Instead of relaxing his attitude, however, Ambi transforms himself into a merciless vigilante, a harsh judge who metes out justice to all manner of wrongdoers. (Netflix.com)