Caro lives happily with her 18-year-old son Ben. Her ex-husband Manni moved out a long time ago and has a new family. Ben is now at an age where he is very bored of the occasional sailing trips and visits to relatives with his mother. But there is a lot to try out: late nights, clubs, girls and drugs. Caro has to experience how Ben tells her less and less and needs her less and less. When she sees surveillance footage of a robbery at a petrol station, where she was with her son shortly before, her protective instinct is awakened.