A mysterious serial killer is shocking the underworld. Scotland Yard is investigating the case. Clues lead the detectives to Blackwhite Castle.

The unsuccessful writer Ritchie can't stand his brother, a criminal businessman. When both fall in love with the beautiful Lilian, a dangerous game of revenge begins.

Left behind by his mother, an alcoholic prostitute, Georg grew up carelessly with his aunt and grandmother. As an adult he works in a department store canteen and has become an outsider due to his shape and infantile appearance.

Engineer Paul Holland returns from a trip. His girlfriend Sybille has disappeared from their apartment without leaving a note. He searches for her and finds himself in the middle of a manhunt for an international drug ring.

Susanne's dream vacation in Florida ends in tragedy. She learns that she has been cheated on by her husband Michael and a little later he is killed by criminals. At home in Berlin, the nightmare continues: apparently, her late husband's company is on the verge of bankruptcy.