A shy and introverted teenage girl finds her life irrevocably changed when she befriends a new student, a rebellious and seductive girl with a troubled background. Initially, the friendship seems like a blessing, providing her with the confidence and excitement she lacks in her life, mainly dominated by her pursuits in photography and her distant relationship with her parents. The new friend quickly becomes a pivotal part of her life, influencing her actions and decisions, and introducing her to a world far removed from her previously sheltered existence.

As the friendship deepens, the newcomer begins to insinuate herself into the girl's family, displaying a particular interest in her father. The family, dealing with its own internal struggles, including the mother's terminal illness, finds the charming yet manipulative friend a refreshing presence, oblivious to her ulterior motives. The dynamics within the household start to shift, leading to a strain in the familial bonds as the friend's influence grows. This sets the stage for a series of events that threaten to disrupt the family's life and uncover the dark intentions behind the friend's actions, revealing the price of misplaced trust and the dangers of manipulation.