Emma Mayer is a psychologist and advises people in crisis situations. She works at a radio station in Mannheim and does her best to provide callers with help and support. When a hostage-taker calls her during a broadcast, her expertise and improvisation are called for, as the caller forces her to move out of the studio and confront him directly. When she arrives at the petrol station, Emma gets involved in a question-and-answer game: For every correct answer, a hostage is allowed to leave; for every wrong answer, a hostage loses their life.