Sophia is an ideal 17-year-old, excelling academically, avoiding trouble, and showing great promise as a pianist. However, she is naturally reserved and introverted. When she befriends Grace, the new student at school, her parents are pleased. But soon, Grace begins to exhibit possessive behavior. As Grace attempts to disrupt Sophia’s family and charm her potential boyfriend, Sophia starts to question whether she has chosen the wrong friend. Now, Sophia must delve into Grace’s mysterious past and uncover the truth about her new companion before it’s too late.