Melissa is a troubled high school student grappling with the recent death of her mother. Her relationship with her father is strained, and she struggles to fit in at her new school. Seeking solace and distraction, she joins a dating website for teens. There, she meets a charming and seemingly perfect boy named Justin. They start chatting and form a quick bond, giving Melissa an escape from her turbulent home life and social isolation. Meanwhile, Melissa's peers and teachers notice her odd behavior and withdrawal from regular activities, raising concern.

As Melissa continues to interact with Justin online, he reveals more about his own difficult past, deepening their connection. However, Melissa's involvement with Justin begins to raise alarms when she starts noticing inconsistencies in his stories. She grows increasingly worried about whether she truly knows the person she's been confiding in. As she delves deeper into his background, troubling discoveries come to light, placing Melissa in unforeseen danger. Her attempts to uncover the truth lead her down a dark and twisting path, leaving her grappling with issues of trust, identity, and the consequences of opening oneself up to strangers online.