Sarah is your 27-year-old work colleague for years. She tells you everything, and so do you. You meet every hour for a smoke break and talk to each other. And if the topics become too private and intimate, you walk around the building alone where no one can hear you. But so far there hasn't been anything more than just funny conversations and a bit of flirting. But tonight, when everyone else gets off work, you're invited to her office. What could possibly go wrong?