As the countdown to graduation begins, students at Osborne High are being stalked by a maniac intent on exposing their darkest secrets to the entire town, terrorizing victims while wearing a life-like mask of their own face. With a mysterious past of her own, Makani and her friends must discover the killer's identity before they become victims themselves.

Life with the latest foster family seems good for teenage siblings Darcie and Hannah. But when Hannah disappears without a trace, it’s down to younger sister Darcie to solve the mystery – and save the family from dark truths that threaten to destroy everything.