Before I Go to Sleep – Film4

A neatly done thriller. 3/5 stars

Nicole Kidman wakes each morning with no memory of the last 14 years, leaving loving husband Colin Firth to patiently explain who he is every day.

Mark Strong is a neurosurgeon whose surreptitious gift of a camera helps her to slowly piece her past together. But the more she discovers, the more scared she becomes – and who can she really trust..?

Kidman’s disorienting plight is both affecting and chilling, but the plot’s supposedly cunning twists are a little too predictable for the film to grip as tightly as it should.