Christer Berg dies in a car crash and is found with a teddy bear named "Bamse". His son, also named Christer finds out that Bamse belongs to his father's lover Barbro Persson. He tries to humiliate her, introducing her to his mother as his new fiancée. But he ends up falling in love with her, and she sees in him the memories of her dead lover. When she finds herself pregnant, they have to decide about their love affair.
A theater company rehearses Aristophanes play "Lysistrata" in which the Athenian women revolt to force the men to suspend the war and make peace. The three leading female actresses, Liz, Marianne and Gunilla, all live in humiliating circumstances to their men.
In Sweden, young US soldier, Willy, goes a.w.o.l and teams up with other deserters in Stockholm. There, he meets leftist radical beauty, Inga, who tries to seduce him into joining her extremist group's cause.