Hetty is a widower who has completely lost contact with her four grown children. She's living on a pension but is unable to make ends meet and finds herself out on the street when she falls behind on the rent. She spends the rest of her life in condemned houses where she stays until builders put her out to find a new place. Her sole companion is her cat, Tibby, who brings birds for her during the final years when she's literally too weak to go out and beg for food for herself.