All of Us Were Sophie

What if the only way you could save your own life was to kill yourself? Someone is trying to kill Sophie. She's trapped inside a deserted machine shop.The killer is resourceful. Relentless. And closing in fast.But there's one chance to survive: a new invention-a duplicator that copies machine parts. But will it work on humans?Sophie has suspicions about who the killer is. She hides clues that only she will understand. Can the duplicate Sophies get away? Will they figure out the clues before...