Tom Ehlert, Creative Director at an advertising agency, is stabbed to death in his apartment in Frankfurt. Is his girlfriend, lawyer Carolina Beyer, responsible for his murder?
Even while at the crime scene she asks Benni to defend her. Despite claiming to be innocent, she is taken into custody. Coincidentally, Benni and Leo were at a bar on the night of the murder and saw an unknown young woman run after Tom Ehlert angrily.
Does the argument have anything to do with the murder? Leo cleverly manages to get hold of Tom’s mobile, which contains some interesting clues. And so the two friends dive into the world of dating apps, because that’s how the defendant and victim met each other.