"It's summer in Finfarran on the west coast of Ireland. Librarian Hanna Casey is looking forward to al fresco lunches with friends, and balmy evenings with her boyfriend Brian in their stunning new home in the beautiful Hag's Glen. With family drama and a painful divorce behind her, Hanna is browsing romantic holiday brochures and making plans with Brian for the future. Then, unexpectedly, Brian's adult son moves in with them, and Hanna re-encounters...