What if you were Switched at birth? And your new mother hates you, so much that she tries to kill you. But you have no idea why.
Kim was sure she was to have a son. She had seen the videos. From the time Kim gave birth to Wendy, she knew the kid was a monster who ate her son. When she attacked Wendy on her sixth birthday which left her with sixty stitches, the cops were called. And she was sent to a mental institution. Wendy was then taken care by her brother and aunt.