High school is coming to an end for the shy Gustav and his best friend, Buller. The two outsiders only think about sex and talk about nothing else. Gustav is hopelessly in love with popular Barbara, who is barely aware of his existence. But the boys' lives change completely when an alien in the form of a handsome guy named Allan suddenly drops from the sky. Without knowing about Allan's plan to take over the earth by procreating with as many people as possible, Gustav and Buller form a special friendship with him. Suddenly, Barbara also catches sight of the clumsy Gustav. In time, it dawns on both Gustav, Buller and Allan that sex is about more than procreation, and that truth changes their world forever.

Albert Rosin Harson
as Gustav

Milo Campanale
as Buller

Zelma Feldman Lewerissa
as Barbara

Tobias Stelzner
as Allan

Frederikke Sofie Faber
as Fantasy

Peder Thomas Pedersen
as Gustavs far

Julie Agnete Vang
as Gustavs mor

Helle Dolleris
as Grillmutter

Kasper Løfvall Stensbirk
as Simon

Jesper Ole Feit Andersen
as Poul