In 1942, Canadian intelligence officer Max Vatan infiltrates occupied Casablanca for a deadly mission alongside Marianne Beausejour, a French Resistance fighter with whom he must pose as husband and wife. What begins as a charade turns into a true love that leads them to marry and build a life in London. But the shadow of war returns when the suspicion arises that she may not be who she claims to be, forcing Max to face a harrowing test. An elegant, tragic romantic spy drama about love under the threat of betrayal.