Crotchety retired doctor Isak Borg travels from Stockholm to Lund, Sweden, with his pregnant and unhappy daughter-in-law, Marianne, in order to receive an honorary degree from his alma mater. Along the way, they encounter a series of hitchhikers, each of whom causes the elderly doctor to muse upon the pleasures and failures of his own life. These include the vivacious young Sara, a dead ringer for the doctor's own first love.
Devout Christians Töre and Märeta send their only daughter, the virginal Karin, and their foster daughter, the unrepentant Ingeri, to deliver candles to a distant church. On their way through the woods, the girls encounter a group of savage goat herders who brutally rape and murder Karin as Ingeri remains hidden. When the killers unwittingly seek refuge in the farmhouse of Töre and Märeta, Töre plots a fitting revenge.
Early in the 20th century, middle-aged lawyer Fredrik Egerman and his young wife, Anne, have still not consummated their marriage, while Fredrik's son finds himself increasingly attracted to his new stepmother. To make matters worse, Fredrik's old flame Desiree makes a public bet that she can seduce him at a romantic weekend retreat where four couples convene, swapping partners and pairing off in unexpected ways.
