Since the early death of her parents the Berlin prosecutor Christine Lambert (Mareike Carriére) takes intensive care of her considerably younger sister Anja (Mirjam Köfer) .
When Anja does not return to a new job after her holidays in Portugal, Christine gets very concerned. Her old friend, Judge Lukas Fichtner, cannot believe that something bad has happened to the little sister. Highly concerned, Christine travels to Portugal. During her search for her sister, she gets to know little Paolo (Rodrigo Jochems), who seems to have followed her, ever since she arrived at the hotel. Soon an intensive friendship is developing between the two. Paolo, who has lost both of his parents in an nightmarish accident, takes Christine as his substitute mother.
Soon the two of them find Christine‘s sister and they realize quite shocked that Anja and her boyfriend Oliver (Sebastian Hartmann) have just bought a farm in Portugal. Unfortunately, the trusted real estate thug Dr. Robert Berg (Andreas Schmidt-Schaller). The charming, wicked Berg believes to have found his next victim in Christine. When he puts an incredible house on sale, which was intended for rent and not for sale, Christine enforces justice with the help of the local police.