When Fiona Gallagher's (Anne-Marie Duff) bag is stolen on a night out in Manchester, a handsome stranger called Steve McBride (James McAvoy) comes to her rescue. He accompanies her to her home in Chatsworth, a deprived inner city council estate, to meet her large family, and the pair begin to grow close, until she receives a visit from the police concerning her alcoholic father, Frank (David T