Amidst the backdrop of pre-World War II Warsaw, a French military attaché finds himself ensnared in a web of espionage, deception, and unexpected romance. As tensions rise in the diplomatic circles and shadowy corners of the city, he navigates a perilous landscape filled with danger and betrayal. Inspired by Alan Furst's compelling novels, this adaptation by Dick Clement and Ian La Frenais delivers a gripping narrative that intertwines political intrigue with personal stakes, showcasing the complexities of loyalty and love in tumultuous times.