A journalist returns to a dark, virtually unrecognizable Athens to investigate his best friend's murder. The victim's girlfriend gives him a hand but they soon realize they either have to abandon their investigation or become cogs in a powerful machine. Marionettes is a story of mystery, shot in an unknown, dark and full of temptations Athens.

The film follows the parallel and entwining stories as well as the common fates of some very different young people for 24 hours in the summertime: from the prison to the corridors of the airport and from the Saronikos beaches to the Psiloritis mountain. The common characteristic of the heroes is that they have inherited from their nefarious parents various problems. In spite of the fact that they used to be neutral, due to specials conditions they will be forced to grow up.