Imagine: An alien has landed on a foreign planet, where life once existed. The alien moves around aimlessly through dark shifting nature, occasionally coming across a frozen figure, a human, poised in time and action, in a deserted wilderness where the sunlight is now out of reach. ALIEN TOURIST comes together as a conglomeration of fragments - of images, places, frozen moments and echoing sounds that present the viewer with a vision of our world, now gone.

Erik and Karim are people smugglers bringing refugees through the Swedish wetlands. One day they meet Maria a mother hoping to cross the border with her infant. Soon she will be faced with an impossible choice.

The story is composed of fragments of lives lived in northern Scania. Some of them are mundane, while others border on the magical. But like shadows over the landscape, some protagonists are distinguished: Beata, a seasonal worker who comes to Sweden for the first time; Aaron, a young man with a broken heart returning to the place where he grew up, and Billie, a girl lost in her first summer vacation. As the film follows their lives, which slowly merge with the landscape.

Affected by the powerful images in the pamphlet Om kriget kommer (If war comes), farmhand Karl-Göran Persson begins fortifying his house. Through years of harvesting scrap-metal, he transforms the house into a fortress, meant to protect him and his neighbors when the enemy attacks. As the task progresses, reality and the threat of future destruction become intertwined, and construction becomes an obsession for the lonely Karl-Göran.