All scenes in this short film were shot in one day.
Most scenes were shot by taping the camera to walls or doors around the apartment. This led to some scenes having to be shot over 6 times, because the camera kept falling.
The bathroom scenes where William has to take pills in order to fall asleep, were shot by holding the camera under his chin in order to make a POV shot.
The pills William takes were actually replaced by Altoid mints, because William was originally going to be shown eating them.