While doing a film project at a private school,[3] Internet video-obsessed teenager Robert catches twin sisters dying due to drugs contaminated with rat poison.

Confused, Robert does not call for help but rather simply walks over to the girls and sits on the floor with them, pulling one into his lap as she dies.

While making the video, Robert and Amy begin a romantic relationship, wherein they both have sex for the first time in a wooded area.

Toward the end of the film, we are finally shown the scene of the girls' deaths from the front and see Robert pressing his hand over her mouth and nose, smothering her.

The website's critics' consensus reads: "Antonio Campos' Afterschool is an intelligent, ambitious debut that boasts strong performances and plenty of ideas.