On the way from Berlin to Portugal in her rusty '303' camper van, young biology student Jule picks up hitchhiker Jan. While having intense conversations about everything and the world, they try not to fall in love.

Two misfit males, one man-child, one boy, find each other, building a small cabin in the woods to create a new life. Their daily struggle for survival creates a strong bond between them until the hut is destroyed and one of the boys carted off. The former psychiatric patient is told that his friend was just a figment of his imagination, but this provokes him to fight back and prove the boy's existence.