The aging, alcoholic Emma Hamilton Vivien Leigh is clapped into debtor's prison in the slums of Calais, and she begins to tell her story in a husky, whiskey-soaked voice to skeptical fellow prisoners. In a flashback that opens the tale, Emma peers into a mirror and recalls “the face I knew before,” the young, radiant girl who captivated artists, from George Romney to Joshua Reynolds, and set a course for a life she never imagined.
Emma Hart’s early life as the mistress of the charming but unreliable Charles Francis Greville leads her to a fateful meeting with her future husband, Sir William Hamilton [Alan Mowbray], the British ambassador to Naples. Greville’s debts push Emma toward him, and what starts as a bitterly cold exchange gradually blossoms into a gilded, glittering world of luxury. Emma learns to value the security and splendor of her new life, and she grows to respect Sir William, who eventually marries her and explains Britain’s reasons for waging war against Napoleon. When Horatio Nelson [Laurence Olivier] arrives in Naples, Emma is drawn to his fierce conviction and his insistence on resisting Napoleon’s conquests. She leaves Sir William to live with Nelson, who is himself married, and the pair’s idyll is soon tested by war, strain, and the complications of their infidelities.
The Admiralty contacts Sir William and delivers hard truths: Emma must go to Cairo, while Nelson must return to Britain. She informs Nelson, and the couple share a passionately sorrowful farewell, only to find themselves pulled back to England in short order. When Lady Nelson [Gladys Cooper] meets Emma, she is distinctly less forgiving than Sir William, and the new tensions ripple through the social circles watching Nelson.
After Nelson’s maiden speech at the House of Lords, gossip swirls in the crowds about which Hamilton woman will claim him. The moment is punctuated by a pointed line of rumor: > There is that Hamilton woman. < Nelson ultimately chooses his wife, but Emma faints, and Lady Nelson guides the carriage away, leaving Emma to face a cold, unforgiving public. Nelson’s father, a clergyman, pleads on his son’s behalf, but the rift remains, and Lord Nelson and Lady Nelson separate, with her vowing never to grant a divorce.
Emma bears Nelson’s child, yet Nelson is called back to sea, and Sir William dies, leaving Emma impoverished and isolated. Nelson learns of the death, and he buys Emma a country house where they live together for a time, a fragile arrangement forged in necessity and memory. The world is once more pitched into war as Napoleon proclaims himself Emperor of the French, and Nelson sails to confront the French Navy off the coast of Spain. The fleet raises its voice in the hymn “Heart of Oak” as Nelson signals the command: > England expects that every man will do his duty. <
Captain Hardy [Henry Wilcoxon] warns Nelson that his manifold decorations could draw fire, but Nelson insists on bearing them, for they were earned in battle. The Battle of Trafalgar erupts in a maelstrom of cannon fire and ruptured orders; Nelson is shot through the spine and taken below deck, muttering, > Poor Emma, what will become of her? < Outside, Admiral Villeneuve’s flagship surrenders, and the fighting pushes on—18 ships destroyed or captured before the enemy finally yields. Nelson refuses to relent, declaring that he has done his duty, and then dies with the ocean wind in his ears.
Back in England, Captain Hardy comes to Emma to recount the carnage and the victory, but tears up the room as he reveals Nelson’s death. With her life having spiraled into poverty and whiskey-fueled oblivion, Emma’s remarkable arc—once radiant with glamour and power, now broken by misery—settles over the story as a somber reminder of what war and ambition can do to those who ride its periphery.
