Desc: B4 - Der Film: Directed by Stefan Morawietz. With Michaela Schaffrath, Stefan Morawietz, Diana Hübel, Alexander Zerrath. The road movie unfolds against the backdrop of a mysterious killing spree along the infamous German B4 motorway, when the lives and deaths of several shadowy figures collide in a puzzling and violent cat-and-mouse game, where no one wins and nothing is true.