You work in an American office of a multinational company, with offices all over the world. As one of the best employees, you've been sent to help get the new City of London office set up, along with other employees from offices abroad -- including Petra, from Zagreb, who you have been friendly with via messenger. While you and your coworkers are out at a pub after work, you see Petra gets a text that clearly dampens her mood. The story begins as she's about to leave and go back to her flat.