Helen Davidson is as bustling, bright and businesslike as the mighty City of Glasgow itself. Her and her doctor daughter Marylka are strong women both, molded in the shadow of the strongest of them all - dogged, selfless, down-to-earth Aunt Mary, Bloody Mary. The Davidson dynasty seems cursed to see its marriages fail and its sons become tyrants or cowards. It is young Marylka who finds herself at the end of this line at the end of a century. But hope and salvation lie in the most surprising place, out west, into the wind.