A bomb threat is called in to a police station in Stockholm. The police bomb squad blows the briefcase to pieces and it looks like false alarm, until a baby is found inside. Soon, e-mails are sent out to every newspaper about the nasty situation that the police had tried to keep secret. Will the police ever overcome the "Monster"?

Peter Haber
as Martin Beck

Mikael Persbrandt
as Gunvald Larsson

Stina Rautelin
as Lena Klingström

Per Morberg
as Joakim Wersén

Ingvar Hirdwall
as Grannen

Rebecka Hemse
as Inger

Fredrik Ultvedt
as Jens Loftegård

Peter Hüttner
as Oljelund

Bo Höglund
as Servitören

Mia Benson
as Åklagare Lindgren