Tobias' antiquarian bookshop isn't doing very well, and he's just had a painful breakup. When he picks up a lovable Spanish street dog on vacation, he decides without further ado to take him with him to Heidelberg. As it turns out, Zola has the gift of finding the right books for each person - because in each "Herzensräuber" he sniffs out the feelings that previous readers have left in them. So he not only whips Tobias's business into shape, but gradually also his chaotic love life ...