Before I Go To Sleep is a thriller set over here, based on SJ Watson’s book of the same name, directed by Rowan (Brighton Rock) Joffe. Nicole Kidman plays Christine, a woman who wakes up each day without remembering what happened to her in her recent past. Her partner, Ben, played by Colin Firth, seems to be the only constant in her life. Mark Strong is Dr Nasch, who attempts to help her unravel the mystery of her life and what really happened. Joffe handles the scenes with style and class and keeps the viewer interested throughout. Before I Go To Sleep, out now on Blu ray and DVD, is a simple thriller but lifted by the performances of Kidman and Firth, with the latter showing a more sinister steak to his acting that he does carry off well. While not earth-shattering, it will pass a winter’s evening very pleasantly.