TWICE is a novel about false fronts and coercive control on a global and personal scale. It tells the story of Nim, who discovers her childhood games taught her dangerous secrets she must now keep from her ex love--and his doubles. Here's a brief blurb:
Nim's ex love returns, wanting a book from their childhood. She chucks him out. But moments later he's back again, one fingertip missing, claiming he's the real Chris and that Nim's first visitor was an imposter. Nim doesn't believe him so he abducts her, forcing her on a journey where nothing is as it seems.