Lexi and her husband Sam have put their heart and soul into renovating No. 3 Cashel Square.

Lexi's mother thinks it's high time they had a baby, but Lexi's thriving art gallery keeps her more than busy. Plus her headstrong niece Amelie seems to have practically moved in. And then, just as summer arrives, a mysterious stranger knocks on the door. Kathleen Williams has come from America, longing to see the house in Cashel Square where she was born, over sixty years ago. 

Kathleen's visit is tinged with sadness but she finds comfort and laughter with Lexie and Amelie. Soon the three women are sharing their hearts, tears and secrets, little knowing their unexpected friendship will touch them all in more ways than they can imagine.