Related Clues:

• It might have a twist
• Book basis
• Diversionary tactic
• Clever maneuver
• It might consist of a 19-Across
• Whodunit component
• Deceptive device
• Central story line
• Movie's story line
• It might thicken
• It usually thickens
• Tricky maneuver
• Coup start
• Underhanded plan
• Whodunit foundation