3 years after the disappearance of her sister, Zara Mills has finally decided to bring her life back to some sort of normalcy. With the help of her best friend, Mila and new boyfriend, Brian, she decides to finally try therapy. It was going well until one day, she received a letter implying that her sister is still alive. Thinking that it is just someone playing a horrible prank, she decides to brush it off. Then there came a photograph of her sister and she knew it couldn't have been a prank. The writer of the letters then began to send her clues to find the truth, which makes her set out on a mission to uncover the truth about Zalia and bring her home. Unbeknownst to her, she is being led on a trail of lies and deception and the truth is far more disturbing than what she could handle.