Almasi is a historical archaeologist who has followed expeditions all the way to the Sahara Desert on geological expeditions.
Catherine and her husband, Jeffrey, on the recommendation of the Royal Geographical Society, came to the Sahari Desert to work with the expedition to map the entire route in the air.
Almasi is knowledgeable, handsome, elegant, Catherine is bright and moving, graceful, and talented, and the two people are so well matched, whether it is appearance, personality, demeanor, or knowledge, interest, and taste.
Jeffrey was a brilliant pilot, and he and Catherine became a couple after nearly a decade of being friends.
The British government sent Jeffrey to Ethiopia in order to obtain an aerial map of the whole of North Africa.
Catherine did not accompany her husband and remained on the expedition to continue their exploration mission.
After Jeffrey left, Almasi had more time to spend with Catherine, and the two of them got to know each other better after getting along.
After a long period of exploration, the expedition team finally discovered a cave depicting a humanoid swimmer.
After they finished their exploration work, maddox and Almasi's supplies truck, which had rolled over, stopped on the way back.
Almasi and Catherine, along with a part of the team, had to stay where they were, waiting for the other returning partners to come to their rescue.
That night, they encountered a rare desert storm, and Almasi and Catherine hid in the cockpit of the truck and spent the whole evening together.
This desert experience allowed two people to finally break free from the shackles of morality and truly come together and become each other's lovers.
Catherine enjoys spending time with Almasi, but she is equally in love with her young husband, Jeffrey.
On the day of Catherine and Jeffrey's first wedding anniversary, Jeffrey discovers the secret of his wife Catherine cheating on Almasi.
Catherine and Almasi were in the apartment, lingering all night, and Jeffrey, alone, drank a beer all night in their car downstairs.
In May 1939, the British government suspended all exploration missions in North Africa, and Maddox left the desert with the expedition, leaving an aircraft at the Kufra Oasis in case Almasi needed it.
Jeffrey could not accept the fact that his wife Catherine had cheated on him, and drove the plane to carry Catherine and rushed to Almasi on the ground.
Almasi dodged Jeffrey's impact, but Catherine suffered severe fractures in several places after the plane crashed.
The expedition left, Jeffrey died of his wounds, and Armassi had to leave Catherine in the Swimmer's Cave and walk alone for three days to Eltaki for rescue from the British army.
Armassi worked hard to reach the British base, but he did not get help from the British, but because of his name, they mistook him for a German and took him to Benghazi, Libya.
To save his lover, he exchanged Jeffrey's map of North Africa for gasoline from the German army, flew the plane Maddox had left him, and returned to the Swimmer's Cave where Catherine was housed.
Catherine was alone in the dark cave and left the world, knowing that Almasi would not let her stay in the desert, and in the last days of her life she used the faint light of the flashlight to write a letter to Almasi.
Armassi took Catherine's body and flew away. On the way, they were attacked by German shells because they were on a British plane.
The plane crashed, Almasi was burned all over his body, he ruined his handsome appearance, and he lost all his previous memories.
After Armassy was rescued, he forgot his name and nationality, and even his memories of Catherine. Whenever he mentioned her, he simply murmured, "My wife." ”
Honor and shame, morality and despair, fell to dust in this instant, and "I love you" became the only promise worth keeping.
Allied medical teams treated Almasi, who, according to his British accent, had the label "British Patient" on his medical card.
The medical team has been moving with the army, and Almasi's body has long been unable to withstand the bumps of the truck on the road.
Hannah, a medical nurse who has lost her husband and friend, decides to leave the army and accompany Almasi to stay in Montreal to recuperate.
She cleaned an abandoned church, reclaimed a small vegetable garden in the yard, and carefully cared for the frail Almasi.
She had thought they would live in seclusion in the ruins of the post-war period, but not long after they moved in, a strange man named David moved in.
David and Hannah get along very well, but they are very hostile to Almasi, he watches Almasi's every move, carries Hannah on his back, and secretly uses Almasi's pain-relieving morphine.
Soon another Indian bomb disposal unit arrived in the town, who were tasked with dismantling the bombs left behind after the German occupation of the town, and Lieutenant Captain Chip stopped Hannah when she played the piano, and dismantled the German bombs installed on the piano.
After he and Hannah met, they and Hardy, who was in the bomb disposal team, temporarily went to the church where Hannah was staying.
The war makes people from two different countries meet together, and the shadow it leaves behind makes two people who love each other deeply become less extravagant.
Hardy was killed by a bomb left under the statue by the Germans. The death of his friend made Chip realize that his profession was still so dangerous in the post-war period.
He refused Hannah's affection, obeyed the dispatch of his troops, and left Montreal for the north of Florence.
Almasi's health was getting worse and worse, and David had lived in the church for so long that he couldn't kill a dying enemy.
In order to rescue Catherine, Almasi gave their painstaking map of North Africa to their enemy, the German army. This allowed the Germans to cross the desert smoothly and sneak into the headquarters of the British army.
In times of war, which country owned the Sahara meant they had strategic control over the whole of North Africa. Almassi's betrayal of the state led to the death and sacrifice of nearly a thousand people.
His good friend Maddox couldn't accept what had happened and shot himself. David was also captured by the Germans, who cut off two of his thumbs during interrogation.
After Almasi recalled everything, there was no hope of living.
He asked Hannah to read to him the last letter Catherine had written to him, and died under the effect of an overdose of morphine.