Before I Go To Sleep, 11.40pm, BBC1

IN THIS intriguing psychological thriller — based on the 2011 debut novel by English writer S.J. Watson — Nicole Kidman (pictured) stars as an amnesiac whose memory only lasts for one day — she must relearn who she is every morning. But are her husband (Colin Firth) and therapist (Mark Strong) telling her the truth about her condition?