In 1939 German-occupied Poland, an American priest and a German officer are brought together by the assassination of Mother Kazimierza, an nun with the gift of prophecy. Father Malecki, a tough Chicagoan, finds himself forced to collaborate with Captain Martin Bora, the young intelligence officer leading the murder investigation. Despite their difference in age, upbringing and beliefs, the men share an idealistic, burning desire for justice.

Malecki's fearlessness leads him into dangerous political waters, while Bora's sense of moral outrage is stoked by the genocidal actions of his compatriots. Separated from his attractive, egotistical wife, he is also at risk of losing his self-control to actress Ewa Kowalska and her beautiful daughter Helenka. An intellectual friendship develops between Malecki and Bora. Together, they will eventually not only solve the crime that threatens to cause a revolt in Poland, but also the unexpected, mysterious death of Bora's womanizing roommate. Will Father Malecki's soul-saving mission succeed in a land already bloodied by the Holocaust?