If you like tangled thrillers with a bewildered heroine caught in the centre of the plot's web, the chances are you'll find something to entertain you in the ingenious developments of this film. It was Russian-born Anatole Litvak's last film (he died in 1974). Samantha Eggar is the secretary with a history of mental disturbance (naturally) who finds people insisting that she's been going to places and doing things she can't remember. The story doesn't really bear close inspection, and the ending is too glib by half, but the top-coating of Litvak's cool direction and Claude Renoir's coldly glittering photography is enticement enough to stay and watch.

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