One evening, fifteen-year-old Olivia arrives home from a party she was expressly forbidden to go to, so she and her mother Hannah get into a fight. Right after that, Olivia says what every parent of a teenager has heard before:

"I hate you. You ruined my life. I will never speak to you again.”

From an early age, Olivia was not easy to get along with, the complete opposite of her contented, unassuming younger sister. At first, Hannah thinks Olivia's outburst is just the end of a parent-child argument, but it turns out to be the beginning of a nightmare…

After one day of stubborn silence, Hannah decides she's had enough of the adolescent sulking. After two days, he begins to fear that something much more serious is going on. When Olivia doesn't speak after a week, it's clear she's hiding some dark secret - something that could tear their beloved family apart...