It's the neighbors' house which belongs to my landlord's son. Calling the police wouldn't help, kids have all the rights in the world here in Germany to make noise. I think I will talk to his mother if this continues. I'm coping with a lot of noise here; kids screaming, kids yelling at their dog when he is barking, kids playing ball in the street (next to the cars, btw), I'm dealing with all that, but it cannot be that Luna and Lily are suffering and do no longer feel safe in their home!