Poppy (Sally Hawkins) is an irrepressibly cheerful primary school teacher who won't let anyone or anything get her down. Even when her bicycle, which she so happily rides through the busy streets of London is stolen, her first thought is only: "I didn't even get a chance to say goodbye."
Living with her flatmate Zoe (Alexis Zegerman), Poppy has a gift for making the most of life. Determined to learn to drive, she finds herself matched with Scott (Eddie Marsan), an uptight driving instructor who is everything she is not.