I loved that we were figuring out the mystery at the same time as Hannah. The direction was great too, you could tell everything was meticulously thought of down to the smallest details.
What I didn't like
I have no notes on what could be improved!
My overall impression
I was hooked the moment the lights turned off. I love a murder mystery and On The Line definitely falls into that genre. I was on the edge of my seat trying to figure out who the assaulter was and once it all clicked I had chills down my spine.