'Before I Go To Sleep' follows Christine, a women with a debilitating memory problem who realises that there is something amiss about the story she is being fed.
After a catastrophic accident in her 20s, Christine (Nicole Kidman) wakes up every day unable to remembering anything from after the accident. One day she uncovers some new truths and they send her into a state of paranoia - can she trust the people she relies on the most?
'Before I Go To Sleep' is adapted from S.J. Watson's best-selling novel and also features Colin Firth and Mark Strong.