Possible Clues:

• In moral or cultural decline
• Demented dance with Ted is depraved
• Dissolute
• Reflecting a state of moral decline
• After the beginning of last month this gets a hole knocked in it
• A duke, outwardly proper, is immoral
• Luxuriously self-indulgent
• Self-indulgent month leads to a depression
• Immoral act ended in stir?
• Effete and corrupt