Nicole Kidman suffers from anterograde amnesia, the same affliction showcased in Memento and 50 First Dates, in the third trailer for Before I Go to Sleep.

A taut thriller based on the worldwide best-selling novel by S.J. Watson, Before I Go to Sleep is the story of a woman (Nicole Kidman) who wakes up every day with no memory as the result of a traumatic accident in her past. One day, terrifying new truths begin to emerge that make her question everything she thinks she knows about her life - as well as everyone in it, including her doctor (Mark Strong) and even her husband (Colin Firth).

Watch as this troubled woman is forced to rediscover her life all over again in this thriller from writer-director Rowan Joffe (Brighton Rock), which co-stars Anne-Marie Duff, Deborah Rosan and Chris Cowlin, arriving in theaters nationwide on October 31.