For a number of years, Michael has swindled and deceived his workplace, his girlfriends and even his own son. But at Christmas time, he makes a drastic decision and brutally kills his own girlfriend, Mette, in order to raise her cash benefit and defraud her relatives. But how can it go so far? How can a simple con artist develop into a cold-blooded killer? Former investigator Sebastian Richelsen is looking for an answer to that.