Ok the only people that can help you are the council, noise complaints are the responsibility your local council unfortunately, given the cuts that have happened over the years this means that they are underfunded. What you need to do is get the local noise complaints number and call it every single time it happens. This is what is called a statutory noise complaint. Just Google it. At the same time you need to start a noise complaint diary,
the columns are date, start time, end time, severity*, weather, and details.
Severity is on a scale of 0 to 4, with 0 been nothing and 4 been OMFG argh. Details need to include what type of noise it is and most importantly how it affects you. Headache? Lack of sleep, emotional distress? Got to town however remember that this is going to be a legal document that could get used in court eventually. Also important is to do it daily even if there is no noise. Include if you are away on holiday etc if it regularly happens on a weekend etc. The council should send you this info after the first couple of incidents
Now for the nighttime banging on the walls and screaming, if it just randomly starts in the middle of the night that sounds to me like someone is or could be having domestic abuse. I apologise in advance if this upsets people. You should contact the police and let the know that.
If any of your neighbours are affected try to get the in on it as well, it's much more effective with multiple people.
Eventually you will be asked to place a "noise recording device" in the room that is most affected, at this point you know something is finally going to be done about, eventually...
If you have any remote possibility of moving house in the next year or so don't go down this route as i believe that you have to declare it to the next house buyer
The problem we have in the UK is that most of the laws, procedures and police are built around people not wanting to be complete knobheads. Unfortunately the people have realised this and also realised there are no consequences for their actions
Remember to cover the holes or you might get the excitement of having to somehow recover a hedgehog from the bottom of the hole