Gösta Ekman as Beck, Rolf Lassgård as Gunvald, Kjell Bergqvist as Kollberg and Niklas Hjulström as Benny Skacke. The best group that have ever played Sjöwall/Wahlöö's investigators? Well, at least they are not far from it. This time they have to find a serial-killer that murders young girls in the parks of Stockholm. The director Daniel Alfredsson is a talented director and he knows how to make a thrilling movie. And this is a very good movie. I highly recommend it.