Documentary film about Hassisen Kone. A band that, despite its short age, is still remembered as one of the most iconic Finnish rock bands of all time. The film tells not only about the band's 40th anniversary concert and the preparations for it, but also about the history of the band and its members' growth from youth celebrities to adults.

A documentary film about a tour of three Finnish rock bands around Saimaa lake system in a steam boat in 1981. The bands (Juice Leskinen Slam, Eppu Normaali and Hassisen Kone) are shown playing songs in their gigs and, in between, the members give intimate interviews or just act plain silly and have a good time.