In New York City, German agents arrange for Jane Greystone (Nancy Coleman) to take a taxi driven by one of their own men. The abduction almost succeeds, but a collision with another vehicle sends both the driver and Jane to the hospital in an ambulance attended by intern Dr. Michael 'Mike' Lewis (John Garfield). On the way, Jane regains consciousness and claims to have amnesia, unable to recall who she is. This surprising turn catches Mike’s curiosity, and he persuades Dr. Murdock (Roland Drew) to let him take the case, drawn by professional interest and a growing sense that there’s more to the situation than a simple kidnapping.
Mr. John Goodwin (Moroni Olsen) suddenly appears at the hospital, insisting that Jane is his daughter. Yet, once he leaves, Jane bluntly tells Mike that the man is lying and that she is actually working for British intelligence. Mike doubts her at first, especially when Goodwin returns with the renowned Dr. Ingersoll (Raymond Massey), a famous specialist who had once taught Mike. The tension deepens as Jane refuses to go home with her supposed “father,” and Ingersoll suggests that Mike accompany her to ease her mind. Jane agrees, and the hunt for truth begins in earnest.
Within the sprawling Goodwin mansion, Mike notices the heavy staff presence and tight restrictions that prevent him from wandering without an escort. A reluctant German agent, Steiner (Christian Rub), is kept prisoner after showing reluctance about the kidnapping. He manages to slip a note to Mike warning that Jane is in grave danger, a pivotal moment that finally makes Mike believe her tale. The escape attempt by Mike only confirms Ingersoll’s suspicion that Jane is fabricating amnesia, and the mystery deepens as the mansion is left deserted except for Ingersoll and a few loyalists.
When a guard offers Mike a chance to slip away for cash, the plan backfires—the guard is secretly working for the spies, and Mike finds himself back in Ingersoll’s custody. In a tense confrontation, Ingersoll coerces Jane into revealing the location of a large convoy, which he then passes along to a lurking U-boat wolfpack. Mike fights to reclaim his freedom, wrestling a gun away from a henchman, and for a moment he believes he has a chance to expose the plot. Jane, however, deflects suspicion by letting him know that the information she gave was intended to mislead, and she promptly alerts the authorities.
As the authorities scramble to intercept the impending strike, a dramatic turn unfolds when bombers are dispatched to sink the U-boats based on the newly acquired intelligence. Mike and Jane, now under a cover of danger, are involved in a separate car accident. Jane again pretends to have lost her memory to protect the truth, but this act falters when Mike’s kiss makes her memory return, restoring the connection between the two and clarifying Jane’s real mission.
Across the hospital and mansion, the cast operates in a web of loyalties and deception. The Goodwin household is staffed by characters like Dawson (Esther Dale) and Jarvis (Frank Reicher), whose roles underscore the claustrophobic, surveillance-heavy environment that surrounds Jane’s investigation. The medical staff, including Dr. Murdock, and other hospital personnel such as Nurse (uncredited) (Audra Lindley) and the hospital’s broader operations, contribute to the atmosphere of pressure and secrecy that permeates the story. Beyond the core players, a cadre of agents—Nazi henchmen like John Ridgely (John Ridgely) and Eddie (Ben Welden)—join the perilous dance that drives the plot toward its climactic confrontation with the Nazi spy ring’s ambitions.
The film unfolds with a careful balance of procedural deduction, high-stakes suspense, and wartime intrigue. Mike’s scientific curiosity about amnesia and his professional commitment to his patient push him into dangerous territory as he navigates a network of corruption and double glances from those who would rather see him silenced. Jane’s own resolve — to uncover the truth about the Nazi spy operation while protecting her sources and allies — provides a steady throughline that contrasts with the shifting loyalties of the hospital, mansion, and covert networks. The pair’s collaboration grows from wary trust to a shared purpose, culminating in a sequence of decisive moments where covert information sprinting toward a critical convoy collision with military action reveals the full scope of the threat.
In the end, the tension of pursuit, counter-persuasion, and counter-surveillance resolves through a mix of courage, quick thinking, and timely intervention. The danger coalesces around the convoy’s location, the U-boat threat, and the ability of Jane and Mike to outmaneuver those who would exploit her supposed amnesia for a strategic strike against Allied forces. The final beat—an auto accident that forces Jane to confront the truth, followed by a kiss that cements her regained memory—brings the narrative full circle, highlighting the resilience and partnership that underpins their gradual trust and shared mission.
Key performances anchor the story: Dr. Michael 'Mike' Lewis’s blend of clinical curiosity and courage (John Garfield); Jane Greystone’s determined intelligence and resolve (Nancy Coleman); the calculated menace of Dr. Ingersoll (Raymond Massey); and the looming shadow of Goodwin’s mansion and its enmeshed staff, including Mr. John Goodwin (Moroni Olsen) and Steiner (Christian Rub). Together, these elements create a taut wartime thriller that stays anchored in a hospital-and-m mansion milieu while delivering action, intrigue, and a moving tale of trust reasserted under pressure.
