I assume this is for a problem question. Break it down into who might have a claim, and whom they have a claim against. Then look at whether the requisite elements are present. You need several elements to have a claim in negligence. What are the tests for each element, and where are they from?
For example, if you are looking at nervous shock, you're probably going to be looking at Alcock. If the facts in the situation you're asked to advise on are different, does the same test apply? Is the result the same? Do you need to consider whether there should be a duty of care?
You need to go through it as systematically as you can. It might help if you posted more of the problem, and we could give you a pointer in the general direction (without telling you how to do it).