Related Clues:

• Be a schemer
• Crook's plan
• It might have a twist
• Book basis
• Diversionary tactic
• It might consist of a 19-Across
• Whodunit component
• Deceptive device
• Central story line
• One may be cooked up
• Movie's story line
• It might thicken
• It usually thickens
• Tricky maneuver
• Coup start