Watch Circadian Rhythm (2005) Official Trailer

Attractive 24 year old Sarah Caul finds herself in a bare white room with no idea who she is or how she got there. Quickly she becomes caught up in a fight for her life and her identity. Pursued by assassins, she discovers that she has been trained to defend herself. Her past may hold the secret as to why she finds herself involved in murder and espionage and is targeted for death. This mind-bending adventure will take her to her past and present, but will she survive a future?