Eva is struggling to live happily with her autistic son Felix. The two are inseparable, but Felix's frequent outbursts of anger, the constant problems at school and his fear of strangers are almost impossible for Eva to cope with. One day when Felix accidentally seriously injured Eva, suddenly nothing is the same as it used to be.
Nine-year-old Max moves to Geroldseck Castle, together with his mother, who takes up a position as a geriatric nurse there. Apparently a shrewd thief is up to mischief here. His mother is suspected, she is threatened with dismissal. Therefore, together with the three residents of the old people's home at table no. 7, Max does everything possible to convict the real perpetrator.
The unsuccessful writer Max Rhode is a law-abiding citizen. But what Max doesn't know yet: In a few days he will commit a crime so horrific that it is hard to imagine for a human being.
