A love affair blossoms between middle-class tool factory employee Jochen and office advertiser Marion.

Jochen's grandmother Oma searches for an affordable apartment to share with Gregor, a gentleman she picked up in a park. When Oma comes across an abandoned library space, she and Gregor decide to become do-it-yourself squatters and turn it into a kindergarten.

After the death of the foreman, the tool factory comrades hope that Franz will get promoted. However, tensions rise when the manager instead brings in an outsider.

Following a visit from Marion's strict mother, Jochen is pressured into proposing. Meanwhile, growing strained relations between Monika and the overbearing Harald start Monika on thoughts of divorce.

Upon discovering that the tool factory is being relocated, Jochen and Marion seek a new place while the workers list demands for their growing impatience.