Spring is in the air and Puck and Einar, as well as Christer Wijk are invited to a wedding in Skoga. The day before the wedding, the bride-to-be enters a flower-shop in order to inspect her bridal bouquet of lily of the valley, but suddenly vanishes without at trace. When she eventually turns up again, it is Christer who finds her. She lies dead outside her home with a bouquet of lily of the valley in her hand. Everybody close to the bride are suspects, not least her best friend, whom Christer has just begun flirting with. Everybody seems to have something to hide. Question is: are their secrets connected to the murder?

The unknown, large mafia organization is now showing its true face. The pressure that GSI and John Falk and his family have put on the organization, makes them fight back on all fronts. The rule book is thrown out. But to go after Johan Falk's family and trying to kill his wife could be the biggest mistake the organization has ever made. GSI closes up around Johan's family and the final battle begins ...

Johan is a two-fisted Gothenburg cop who finds himself in a shoot-out with jewel robbers. After the smoke has cleared, one robber, shot by his accomplice, and an innocent bystander, are dead. Three witnesses, including Helen, identify thug extraordinaire Leo Gaut as being the dead crook's trigger-happy colleague. Gaut soon threatens the three witnesses, and only Johan, the badge-wearing hero, can save them.