Simon has Asperger's syndrome and doesn't like changes in his life. He lives with his big brother Sam and Sam's girlfriend Frida. When Frida can't stand having to adapt to Simon's peculiarities anymore she takes off, leaving Simon with having to find a new, perfect, girlfriend for his brother.
"Eternal Summer" is a road movie full of dreams, love, missteps and lawlessness. When Isak and Em meet one night in Stockholm they're finally in the right place, suddenly there is nothing else. Together, they leave everything and embarks on a roadtrip through the northern forests of Sweden. But what begins as a crazy adventure soon turns into a dangerous game. Eventually they reach a point when there is no turning back.
On bright summer nights, warm, intimate friendship turns into a disappearance. Strange screams can be heard in the forest and the group realizes that they have been forced into a dark secret. A thriller about a police investigation, but also about a group of friends and their last summer together.
