
Clara Sterling, a brilliant Manhattan book restorer, spends 15 years quietly mending priceless manuscripts for her husband Richard — who passes her flawless work as untouched originals to build his fortune. Armed with a homemade invisible ink formula, she hides her signature in every piece, then detonates the truth at a landmark auction. Her fight for credit sparks a movement to lift every "invisible" restorer out of the shadows and claim the respect their craft has long been denied.