Related Clues:

• Let in/off bullet train by Savage, in manner of speaking?
• Harsh routine in workplace set up
• Inhuman daily grind in setting up laboratory
• In revision, keep a tight rein on short story that's mostly barbaric
• Vicious man who conspired with Capone, not American
• Blurt out about a savage
• Inhumane routine is observed in revolutionary scientist's workplace
• Not sweet, animal, heartless. Just so
• Savage, vicious
• Savage, unfeeling
• Cruel and severe