Lamb tells the story of Maria and Ingvar, a childless couple of Icelandic sheep farmers in the early forties, and how an unexpected change in their circumstances brings them much joy before ultimately destroying them. 

After Inga loses her husband in a car accident, she must stand on her own two feet. She reckons with the past and the community in which she lives. 

When Gisella becomes bankrupt, she decides to rent out her spare bedrooms to two immigrant women. The arrangement begins well for all parties but gradually the foreign influences in the home begin to threaten Gisella's control of the house, her morals and her sanity.

After 16 years as President of Iceland Vigdís Finnbogadóttir packs her belongings at the President’s estate.  Her mind takes her back to the time when all of this began – the year 1980 when someone got the crazy idea that a woman could, for the first time in human history, become President.