girl gets kidnapped and is tortured to the point where she hears a song in the end and kills her parents

Fourteen-year–old Megan and her best friend Amy spend a lot of time on the internet, posting videos of themselves and chatting with guys online. One night Megan chats with a guy named Josh who convinces her to meet him for a date. The next day, Megan is missing—forever. Based on actual cases of child abduction.