The King is about to visit a small town, and everyone is excited to prepare for the event. Everyone but Egon Karlsson, vice municipal commissioner and and member of the Republican Association.
Matte and Kranken are best buddies. When they want to go on a cycling holiday in Gotland Matte decides to bring his new girlfriend Lisa with him, despite Krankens objections. Lisa turns out to be much more attractive than Kranken imagined and soon the problems begin to loom over the horizon.
Someone is killing off Swedish military officers and making it look like the works of Soviet agents. Hamilton has to crack the case before all hell breaks loose and there is a full scale spy-war with the soviets.