Girl Followed (2017)

Trailer
Reagan, a 14-year-old girl, is grounded by her parents after they find her sending suggestive selfies to boys at school. Her loneliness and resentment draws the attention of a 22-year-old medical assistant who becomes an outlet for her rebellious desires. However, what started as a seemingly innocent friendship with an older man is soon revealed to be something dangerous; as Reagan begins to learn that her first encounter with this man wasn't by chance, and that he has a terrifying plan for their future.