During 1977, London appears to be a mere town until aliens in a form of sexy teenagers head down for a mission. To head back to the drawing table, Enn (Alex Sharp) is a shy teenager, trying to enjoy life with his fellows. He occasionally sneaks out with his friends for late night punk parties, but one night happens to unfold differently. They meet a group of sexy teenagers who appear anonymous and it’s like they are from another planet. Yes, it’s true; they are aliens from a different planet who have just come to complete a mysterious rite of passage. As Enn and his friends watch these aliens, he is drawn to Zan (Elle Fanning), a beautiful and an intelligent alien. Despite their differences, the two fall in love and begin exploring the world like no other man. However, their love compromises everything that the aliens came to accomplish and at the end of the end, Enn must save Zan from death. John Cameron Mitchell, an acclaimed writer is behind this exotic film.