Marsha Sprinkle: Suitcase thief. Scammer. Master of disguise. Dogs and children hate her. Her own family wants her dead. She's smart, she's desperate, she's disturbed, and she's on the run with a big chip on her shoulder. They call her "Liarmouth" - until one insane man makes her tell the truth. A hilariously filthy tale of sex, crime, and family dysfunction. From the brilliantly twisted mind of John Waters, the legendary filmmaker.