Related Clues:

• Collude
• Small area of ground
• Nefarious plan
• Carefully laid plan
• Wheel and deal
• Be scheming
• Basis for a whodunit
• Tricky plan
• Conspiracy theorist's subject
• Cabal's plan
• Schemer's thing
• "Ponzi" or "rhyme" follower
• "The ___ thickens"
• Whodunit essence
• Novel essence