Warsaw Dark (2008)

Original title: Izolator

Prominent cinematographer Christopher Doyle continues to hone his talents as a director with this thriller set in Eastern Europe and inspired by the as-yet-unsolved murder of a Polish politician in 2001. A young prostitute is spending the evening with a prominent Polish official when he's suddenly assassinated in Warsaw. In the aftermath of the hit, the triggerman takes the prostitute to an apartment and subjects her to a complex personality replacement program designed to wipe out any memories she may have retained about the evening's events.