Wannabe stand-up Dolly Diggs suffers from stage fright. To overcome her fear, she plans to become a ventriloquist and thinks she found just the puppet to help. Enter bold, brassy, sassy and sickening, the sequinned killer under two feet tall, Connie. But Connie is no ordinary puppet... She's a living doll. As Dolly and Connie take the London comedy scene by storm, Connie begins to take over Dolly's life. Meeting fellow ventriloquist, Ollie Bloom, Dolly is encouraged to leave Connie behind and go solo, making it a supernatural fight to the end.