Two men, who both have tried to commit a suicide, decide to found a "Let's do it together"-suicide association to help the self-destructive people to succeed in their goal. Soon they have a bus load of candidates and together they start a bus tour in order to find a suitable place for the mass suicide.
Uuno Turhapuro's younger brother Peni arrives in Helsinki. Uuno helps his brother in management duties.
New takeover plans and Russian art thief looking for Mannerheim's portraits keep Sergeant Körmy busy.
