Your task is simple: Enter the building, take the lift to the 13th floor and make a good impression at the job interview... 13th floor? That doesn't sound right. And it is not.
As the game is really short, it's impossible to explain details of the story without spoiling the fun. Let's just say, it's theme changes from slice of life to greek mythology and back. The conclusion could have been more elaborate, but the idea is clever(Spoiler - click to show), though predictable and a bit "deus ex machina".
A short, linear game, probably good as an introduction to IF and, other than Max' later games Das Felleisen and Das Kopialbuch, not as heavy on the historical background.