Hyperactive at the best of times, Martha (Anna Kendrick) has gone full-on manic since her latest breakup. She babbles, parties like a monster, cooks everything in sight - and is looking to do something terrible when she meets Francis (Sam Rockwell). To anyone else, Francis's approach would come across as creepy, but Martha can't help but be intrigued. They seem a perfect match: she's bananas, he's bananas... except he's a deadly sort of bananas. He's a professional assassin.