Eleanor Oliphant is Completely Fine by Gail Honeyman

Eleanor Oliphant lives a solitary existence working in an office with weekly phone calls to her mother. When she and a new co-worker, Raymond, help an older man named Sammy who has fallen in the street, she finds herself drawn into both Raymond's and Sammy's lives. Growing up in foster homes and having suffered trauma when she was young, she has a hard time not being judgmental, but slowly she begins to be touched by her new friends' kindness and concern for her. Eleanor has also developed somewhat of a crush on the lead singer of a band. She sets out to make herself over to win his affections. Will Eleanor come out of her shell, be able to put her past behind her and find happiness?