"Help! My plot drags, sags, and has no heart!"

This looks like a job for Plotman!

Yes, solving your plot problems is why the superhero of story came to Earth. His mission? To give practical, easy-to-apply answers to the most vexing plot questions writers face, such as:

• How do I plan a plot if I'm not a plot planner?
• Does my plot need a prologue?
• What if I hit a plot wall?
• What if my plot is getting away from me?
• Why ins't my plot more gripping at the start?
• Why is my overall plot dull?
•...