In post-WW2 England (1947), ambitious journalist Stephen Underwood comes across a disturbing spate of suicides by Polish soldiers. Sensing a story, his first port of call is Colonel Janusz Pietrowski, a Liaison Officer for the re-settlement of Polish troops under British command, but the meeting with Pietrowski leaves Stephen unsettled, and from here his investigation escalates as he finds himself embroiled in a dangerous, multi-layered conspiracy concerning the execution of 22,000 Polish military and civilians by Stalin’s secret police in Spring 1940 in Katyn.

The film deals with the true story of the Katyn Massacre and its cover up by both the British and US governments after WW2.