Movie I watched as a kid

I remember watching this movie when I was about 5 I think? So 1999, possibly before, and as far as I’m aware it was on tv and was quite long so it could be a tv episode, but I’m thinking a tv movie. Anyway, I remember a man kidnapped a bunch of kids, I think he locked them in a vault or a storage unit of some sort. Probably 10+ kids, and he would only set them free if a really old lady (who I think is immortal and ‘gold lady’ springs to mind for some reason) climbs these spiral stairs to heaven and dies. In the end she does to save the kids and I’m pretty sure the kids are freed. It has bugged me for literally years so if anyone has seen this you will be doing me a massive favour if you can help. Thanks!

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