Desc: Ratten 2 - Sie kommen wieder!: Directed by Jörg Lühdorff. With Ralph Herforth, Christian Kahrmann, Daniela Preuß, Janek Rieke. In this sequel to Ratten - sie werden dich kriegen! (2001), Frank and Katrin return to Frankfurt to take on a pack of genetically mutated vermin. When the the rodents attack, it's up to Frank and Katrin to stop the scientist responsible for the mutant critters.