Nine year old Max moves to Geroldseck Castle together with his mother who gets employed as a nurse in a senior residence. Apparently a crafty thief drives here his mischief. Max's mother is suspected of threatening to dismiss her. That's why Max, together with the three nursing home residents of Table No. 7, is doing everything in his power to convict the true perpetrator.

La hija atrevida del diablo hace un trato con papá por puro aburrimiento: si logra pervertir a una persona decente, abandona el Infierno y se queda en la Tierra.