After five years working for Europol in The Hague, Johan Falk returns to Gothenburg to work with the special operations group GSI - an elite force within the Swedish police whose sole objective is to combat organized crime.

A violent war in the restaurant business has flared up, and Johan Falk learns that one of the restaurants is run by Leo Gaut - a gangster he put behind bars years ago. Forced to seek his old enemy's help with the case, Falk unwittingly triggers a series of cold-blooded acts of vengeance.