
Bullock stars as Sarah Ashburn, an FBI agent hoping for a promotion and high-tails it from her home base in New York City to Boston, to help solve the mystery behind several murders. Standing in Ashburn’s way is a hard-hitting Boston police officer, Shannon Mullins played by Melissa McCarthy, who’s not happy that the FBI – especially the stuck-up Ashburn -- is treading on her turf. Ashburn is determined to wrestle the case away from Mullins, but the disheveled, foul-mouthed, in-your-face cop is a formidable adversary. They’ll soon discover they have more in common than they ever thought possible, including their misfit status and complementary skillsets.
“Ashburn’s effectiveness as an FBI agent comes from her meticulousness, stubbornness and thoroughness,” says Bullock. “But she’s completely inept when it comes to any kind of social interaction. She’s trying so hard to make up for that particular weakness that she becomes insufferably arrogant on the job. Ashburn is respected but not liked because she isn’t a team player. Every time she opens her mouth, people cringe.”