After a visit to Argentina, Spain's most famous detective Pepe Carvalho is back in his beloved Barcelona and is swiftly embroiled in a murderous scandal amid the murky politics of 21st century Catalonia. When the son of a rich financier is murdered, Carvalho is called upon to investigate his mysterious death. In his quest for the killer, Carvalho has to infiltrate the world of Satanism and religious sects. The bon vivant detective also faces problems...