Several emblematic buildings in Vienna suffer from a series of explosions that destroy works of art of inestimable value, as well as generating a large number of victims. Detective Peter Bender will need the help of Lena, a student of art, discover the murderer, because it uses a hidden code in the symbolism of the boxes to convey a message.

A debt-ridden film producer tries to sell his debut film to television, and he doesn't shy away from blackmail.