During World War II, in war-ravaged London, a diverse group of people rush to book passage to the United States, including Tom Prior, John Garfield, a steadfast newspaperman, and his wife Ann Bergner, Eleanor Parker. An austere, determined man, Henry Bergner, Paul Henreid, the Austrian pianist-turned-soldier for the Resistance, is barred from joining them by a missing exit permit. After a harrowing air raid, Ann witnesses a car explode with innocents aboard as they race toward the docks. She returns to their apartment to find that Henry has turned on the gas to end his life, and, despite his initial resistance, she joins him in the final act.
Suddenly, the two find themselves aboard a fog-shrouded ocean liner, surrounded by the very passengers they believed were lost. Ann recognizes the others as the people who were killed in the bombing. The steward Scrubby, Edmund Gwenn, gently pleads with them not to reveal their spectral status to the others; it is better to let them come to the realization on their own.
At first, the newly dead are buoyed by the chance to be together forever, but their enchantment quickly gives way to the weight of their choices in life. A timid Anglican priest, Reverend William Duke, Dennis King, longs to do more to help those around him, while American sailor Pete Musick, George Tobias, aches to glimpse his newborn child again. A kind-hearted elder, Mrs. Midget, Sara Allgood, speaks with Tom Prior and admits she would be content with a modest, humble place of her own.
Prior is the first to sense the truth when he overhears Henry and Ann speaking, and, spurned by his wealth-loving actress companion, Maxine Russell, Faye Emerson, he reveals his discovery to the rest. Scrubby confirms that their future rests in the hands of the Examiner. When the Examiner arrives, he is revealed to be the late Reverend Tim Thompson, Sydney Greenstreet, a man Duke once knew. Duke is granted another chance in Heaven as an Examiner-in-training, and one by one the others are judged and sent ashore to their destinies.
Wealthy Mr. Lingley, George Coulouris, learns that he cannot buy his way into Heaven and must face the consequences of the pain he has caused others. Genevieve Cliveden-Banks, Isobel Elsom, and her husband Benjamin Cliveden-Banks, Gilbert Emery, form a mismatched pair. She is a shallow, mercenary social climber who married him for his wealth, and she discovers that infidelity has worn thin his patience; in the end he declines to join her, choosing a different fate and vowing to reunite with old friends instead.
Prior re-enters the fray, joined by Maxine Russell, and he confronts the reality of his life’s choices. He attempts to tilt the odds by tampering with a deck of cards to win his way into Heaven, but the Examiner’s power over truth thwarts his sleight of hand. The afterlife, the Examiner makes clear, will reflect life as it was lived, with one stark exception: Prior can no longer hide behind his illusions or deceive his own heart. Mrs. Midget steps forward to accompany Prior, offering up her cottage and garden in Heaven; in a revealing moment, the Examiner discloses that Mrs. Midget is actually Prior’s mother, who gave him up long ago so he could have a better chance in America. This revelation reframes his longing for redemption and highlights the possibility of reconciliation.
Musick the sailor laments not being able to see his family again, but the Examiner consoles him with the promise that they will be reunited in time.
The ship’s most poignant case belongs to Henry Bergner. Because he took his own life, he is condemned to remain aboard the ship for eternity while Ann ascends to Heaven. Ann protests that suicide bound her to Henry, and she refuses to abandon him. Scrubby, himself a doomed soul for choosing suicide, pleads with the Examiner. When a bomb-fractured window on their apartment reopens the air and life returns, Henry awakens to fresh air and a renewed chance at life. He and Ann greet this reprieve together, recognizing their restored breath as a gift.
In the end, the story unfolds as a quiet meditation on the moral weight of one’s choices, the possibility of redemption, and the enduring pull of love and family. The voyage becomes a test not of escape, but of character, as each passenger faces a reckoning that reframes who they were and who they might become, both on the ship and beyond.