All This Film Did Was Leave Me With Questions (Spoilers Galore)

Did the twins use their powers to make Katie sleep with Derek and why make Katie see that creepy guy while with Derek?

The Detective found videos of experiments being conducted with twins but how does that tie in to the Trimble twins' powers? Their parents only went to the clinic for fertility treatments.

Why the hell did Jonah send Eve his finger? She was as much a victim of Seth as he was?

Who runs upstairs in a burning house? Seriously, Eve?