HI just looking for some advice please. There is a little boy living next door in a flat with his parents but hes never been seen! We hear him playing in frontroom and all over xmas hes been laughing and playing games from the sound of it but we share a back gate and in 3 months i've lived here no-one has seen him, they keep curtains closed and go to bed quite early (8ish), neither parents go to work and not talkative if u see them.
Would u be concerned ?