Awake tell the story of a young man (very rich one that is) named Clay (Hayden Christensen) who suffers anaesthetic awareness.
Basically, he can fell everything while he is undergoing heart surgery, he feels everything, hears everything and , for the first time, sees everything. Because while he is on the table with his chest wide open he figures out some really important things and , trust me, there is a twist that you won’t see coming.

A brilliant psychological thriller!
Btw Jessica Alba plays Sam his girlfriend and she does play a pretty important part (hint hint)