The cat shelter Ownerless Heart (Coração Sem Dono) is at the margin of Lisbon giving a home to the abandoned. In this space, decorated by a closed factory, Sonia takes care of the shelter. Every day after work, she comes and feeds and gives love to the more than 50 cats she has rescued. But the job is not easy and she has to fight for the shelter, feeling disappointed by human behavior, that has caused pain to these animals, she would rather be a cat than a human.