I always point out errors first, so bear with me.

"Emily chocked back a sob and hoped she wouldn’t trip in the mud like they always did in the movies."

Chocked should be "choked".

He paused, making sure that she was still listening. We’ll also have your room-mate stay somewhere else until this is over,” he added

You forgot the other set of quotation marks before "We'll".

"He began to walk towards her, his arm slightly raised"

I assumed he was already within arms reach since he had his hand over her mouth.

"“He’s a fucking rapist and he’s threatening my sister and that isn’t enough?!”"

I would drop the exclamation mark from that, from the wording of it already sounds desperate and anxious.

“He scoffed. “He wouldn’t take me seriously.”

You accidentally placed quotation marks before "he scoffed".

Enough with all that. Anyway, I quite liked the way you switched from the dream-sequence to reality, it was very effective.

I wasn't very fond of Adam, he changed too dramatically from cold to Mr.explainmymasterplan. I find it rather hard to believe that he would bother going after Emily based on his motive for killing the guy in the beginning...it just didn't seem likely. But that is just my take on it. This was a brilliant read though. Very entertaining and the like.

Cheers.