Unlocked

You always want the serial killer to get caught, but this guy was written and performed so well that I especially wanted him to get caught. Such an obnoxious creep, and his whole thing about doing it just because he found her phone only added to it. Did a good job of keeping that creepiness the whole time while also throwing in some decent scares, like when you first see him turn on the phone. The last 25 minutes is tense and an excellent climax.