Looking for another specific fanfic

[Obsession]

Hi there,

I don't know if I read this specific fan fiction on here or on ff.net; but I really liked the story and have had trouble finding it again. So if anyone has read this or knows where it is and under what name, please let me know.

I'm looking for another one now. This one is about Harry and Ruth, naturally, and is a bit of smutty fluff.
Story intro goes like this:
Harry doesn't arrive in for work in the morning and Ruth and Adam go to his house to find him. They break in and find him tied and badly beaten. Ruth decides to send Adam back to the Grid to run the day while she stays with Harry to nurse his wounds.

Once again, I'd really appreciate it if anyone knows what this story is called. Cheers.