Before I Go to Sleep Trailer + Poster!

A thriller based on the book of the same name starring Nicole Kidman, Colin Firth and Mark Strong, it tells the story of a woman that wakes up not knowing where she is, as her memories disappear every time she falls asleep. Not knowing who she should trust, Christine starts to suspect of everyone around her and ultimately finds the truth is much worse than she feared...

Source 1
Source 2