The film follows a dress rehearsal of a charity concert.
Factory manager Risto Järviö is under his mother's thumb. When his mother forbids him from dancing with factory girl Seija Vaara, Seija decides to make anonymous phone calls to Risto to annoy his controlling mother. Risto falls in love with the voice on the other end of the line and begins to make major changes in his life.
Timo learns about his grandfather Santeri's background in the workers' sports movement. Inspired by this, he begins to encourage his alcoholic father to practice his own sport, javelin throwing.
