She has no memory of the past…
…but she knows she's alive.
She has no knowledge of who she is. She is unable to see or move. Whatever put her in the ambulance that night, she is sure, it almost took away her life.
When the visitor comes to witness her in the hospital, and seems to know more about her condition than she does, she discovers something familiar about his voice, but she is not willing to trust anyone yet. Later, she receives another visitor, a stranger that hides amongst the shadows. It is this stranger that helps her to discover that she was an agent within a secretive government agency. She has to decide who to trust, with her life on the line.